added functions which computes variances , the float complex functions seems to have a weak precision ( 1-e04 instead of 1-e06 for some value )

18 files changed, 2736 insertions, 0 deletions

diff --git a/src/statisticsFunctions/variance/Makefile b/src/statisticsFunctions/variance/Makefile
new file mode 100644
index 00000000..a065fe6c
--- /dev/null
+++ b/src/statisticsFunctions/variance/Makefile
@@ -0,0 +1,772 @@
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+# statisticsFunctions/variance/Makefile.  Generated from Makefile.in by configure.
+
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+# 2003, 2004, 2005, 2006, 2007, 2008  Free Software Foundation, Inc.
+# This Makefile.in is free software; the Free Software Foundation
+# gives unlimited permission to copy and/or distribute it,
+# with or without modifications, as long as this notice is preserved.
+
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY, to the extent permitted by law; without
+# even the implied warranty of MERCHANTABILITY or FITNESS FOR A
+# PARTICULAR PURPOSE.
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+
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+host_triplet = i686-pc-linux-gnu
+check_PROGRAMS = testFloatVariance$(EXEEXT) \
+	testDoubleVariance$(EXEEXT)
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+	libVariance_la-drowvariancea.lo \
+	libVariance_la-dcolumnvariancea.lo \
+	libVariance_la-cvariancea.lo libVariance_la-crowvariancea.lo \
+	libVariance_la-ccolumnvariancea.lo \
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+            -I $(top_builddir)/elementaryFunctions/includes \
+            -I $(top_builddir)/matrixOperations/includes \
+			-I ../includes
+
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+		scolumnvariancea.c \
+		dvariancea.c \
+        srowvariancea.c \
+		drowvariancea.c \
+		dcolumnvariancea.c \
+		cvariancea.c \
+		crowvariancea.c \
+		ccolumnvariancea.c \
+		zvariancea.c \
+		zrowvariancea.c \
+		zcolumnvariancea.c
+
+HEAD = ../includes/variance.h
+
+####
+# Checking Part
+####
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+            -I $(top_builddir)/elementaryFunctions/includes \
+            -I $(top_builddir)/matrixOperations/includes \
+			-I $(top_builddir)/type
+
+check_LDADD = $(top_builddir)/type/libDoubleComplex.la \
+			$(top_builddir)/type/libFloatComplex.la \
+			$(top_builddir)/lib/lapack/libscilapack.la \
+			$(top_builddir)/statisticsFunctions/variance/libVariance.la \
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+            $(top_builddir)/auxiliaryFunctions/abs/libAbs.la \
+            $(top_builddir)/matrixOperations/transpose/libMatrixTranspose.la
+
+
+#
+# -*- Variance Tests -*-
+#
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+	cd $(top_srcdir) && \
+	  $(AUTOMAKE) --foreign  statisticsFunctions/variance/Makefile
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+	  echo "rm -f \"$${dir}/so_locations\""; \
+	  rm -f "$${dir}/so_locations"; \
+	done
+libVariance.la: $(libVariance_la_OBJECTS) $(libVariance_la_DEPENDENCIES) 
+	$(libVariance_la_LINK) -rpath $(pkglibdir) $(libVariance_la_OBJECTS) $(libVariance_la_LIBADD) $(LIBS)
+
+clean-checkPROGRAMS:
+	@list='$(check_PROGRAMS)'; for p in $$list; do \
+	  f=`echo $$p|sed 's/$(EXEEXT)$$//'`; \
+	  echo " rm -f $$p $$f"; \
+	  rm -f $$p $$f ; \
+	done
+testDoubleVariance$(EXEEXT): $(testDoubleVariance_OBJECTS) $(testDoubleVariance_DEPENDENCIES) 
+	@rm -f testDoubleVariance$(EXEEXT)
+	$(testDoubleVariance_LINK) $(testDoubleVariance_OBJECTS) $(testDoubleVariance_LDADD) $(LIBS)
+testFloatVariance$(EXEEXT): $(testFloatVariance_OBJECTS) $(testFloatVariance_DEPENDENCIES) 
+	@rm -f testFloatVariance$(EXEEXT)
+	$(testFloatVariance_LINK) $(testFloatVariance_OBJECTS) $(testFloatVariance_LDADD) $(LIBS)
+
+mostlyclean-compile:
+	-rm -f *.$(OBJEXT)
+
+distclean-compile:
+	-rm -f *.tab.c
+
+include ./$(DEPDIR)/libVariance_la-ccolumnvariancea.Plo
+include ./$(DEPDIR)/libVariance_la-crowvariancea.Plo
+include ./$(DEPDIR)/libVariance_la-cvariancea.Plo
+include ./$(DEPDIR)/libVariance_la-dcolumnvariancea.Plo
+include ./$(DEPDIR)/libVariance_la-drowvariancea.Plo
+include ./$(DEPDIR)/libVariance_la-dvariancea.Plo
+include ./$(DEPDIR)/libVariance_la-scolumnvariancea.Plo
+include ./$(DEPDIR)/libVariance_la-srowvariancea.Plo
+include ./$(DEPDIR)/libVariance_la-svariancea.Plo
+include ./$(DEPDIR)/libVariance_la-zcolumnvariancea.Plo
+include ./$(DEPDIR)/libVariance_la-zrowvariancea.Plo
+include ./$(DEPDIR)/libVariance_la-zvariancea.Plo
+include ./$(DEPDIR)/testDoubleVariance-testDoubleVariance.Po
+include ./$(DEPDIR)/testFloatVariance-testFloatVariance.Po
+
+.c.o:
+	$(COMPILE) -MT $@ -MD -MP -MF $(DEPDIR)/$*.Tpo -c -o $@ $<
+	mv -f $(DEPDIR)/$*.Tpo $(DEPDIR)/$*.Po
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+#	$(LTCOMPILE) -c -o $@ $<
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+	$(LIBTOOL) --tag=CC $(AM_LIBTOOLFLAGS) $(LIBTOOLFLAGS) --mode=compile $(CC) $(DEFS) $(DEFAULT_INCLUDES) $(INCLUDES) $(AM_CPPFLAGS) $(CPPFLAGS) $(libVariance_la_CFLAGS) $(CFLAGS) -MT libVariance_la-svariancea.lo -MD -MP -MF $(DEPDIR)/libVariance_la-svariancea.Tpo -c -o libVariance_la-svariancea.lo `test -f 'svariancea.c' || echo '$(srcdir)/'`svariancea.c
+	mv -f $(DEPDIR)/libVariance_la-svariancea.Tpo $(DEPDIR)/libVariance_la-svariancea.Plo
+#	source='svariancea.c' object='libVariance_la-svariancea.lo' libtool=yes \
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+libVariance_la-scolumnvariancea.lo: scolumnvariancea.c
+	$(LIBTOOL) --tag=CC $(AM_LIBTOOLFLAGS) $(LIBTOOLFLAGS) --mode=compile $(CC) $(DEFS) $(DEFAULT_INCLUDES) $(INCLUDES) $(AM_CPPFLAGS) $(CPPFLAGS) $(libVariance_la_CFLAGS) $(CFLAGS) -MT libVariance_la-scolumnvariancea.lo -MD -MP -MF $(DEPDIR)/libVariance_la-scolumnvariancea.Tpo -c -o libVariance_la-scolumnvariancea.lo `test -f 'scolumnvariancea.c' || echo '$(srcdir)/'`scolumnvariancea.c
+	mv -f $(DEPDIR)/libVariance_la-scolumnvariancea.Tpo $(DEPDIR)/libVariance_la-scolumnvariancea.Plo
+#	source='scolumnvariancea.c' object='libVariance_la-scolumnvariancea.lo' libtool=yes \
+#	DEPDIR=$(DEPDIR) $(CCDEPMODE) $(depcomp) \
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+
+libVariance_la-dvariancea.lo: dvariancea.c
+	$(LIBTOOL) --tag=CC $(AM_LIBTOOLFLAGS) $(LIBTOOLFLAGS) --mode=compile $(CC) $(DEFS) $(DEFAULT_INCLUDES) $(INCLUDES) $(AM_CPPFLAGS) $(CPPFLAGS) $(libVariance_la_CFLAGS) $(CFLAGS) -MT libVariance_la-dvariancea.lo -MD -MP -MF $(DEPDIR)/libVariance_la-dvariancea.Tpo -c -o libVariance_la-dvariancea.lo `test -f 'dvariancea.c' || echo '$(srcdir)/'`dvariancea.c
+	mv -f $(DEPDIR)/libVariance_la-dvariancea.Tpo $(DEPDIR)/libVariance_la-dvariancea.Plo
+#	source='dvariancea.c' object='libVariance_la-dvariancea.lo' libtool=yes \
+#	DEPDIR=$(DEPDIR) $(CCDEPMODE) $(depcomp) \
+#	$(LIBTOOL) --tag=CC $(AM_LIBTOOLFLAGS) $(LIBTOOLFLAGS) --mode=compile $(CC) $(DEFS) $(DEFAULT_INCLUDES) $(INCLUDES) $(AM_CPPFLAGS) $(CPPFLAGS) $(libVariance_la_CFLAGS) $(CFLAGS) -c -o libVariance_la-dvariancea.lo `test -f 'dvariancea.c' || echo '$(srcdir)/'`dvariancea.c
+
+libVariance_la-srowvariancea.lo: srowvariancea.c
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+install-ps: install-ps-am
+
+installcheck-am:
+
+maintainer-clean: maintainer-clean-am
+	-rm -rf ./$(DEPDIR)
+	-rm -f Makefile
+maintainer-clean-am: distclean-am maintainer-clean-generic
+
+mostlyclean: mostlyclean-am
+
+mostlyclean-am: mostlyclean-compile mostlyclean-generic \
+	mostlyclean-libtool
+
+pdf: pdf-am
+
+pdf-am:
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+ps: ps-am
+
+ps-am:
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+uninstall-am: uninstall-pkglibLTLIBRARIES
+
+.MAKE: install-am install-strip
+
+.PHONY: CTAGS GTAGS all all-am check check-TESTS check-am clean \
+	clean-checkPROGRAMS clean-generic clean-libtool \
+	clean-pkglibLTLIBRARIES ctags distclean distclean-compile \
+	distclean-generic distclean-libtool distclean-tags distdir dvi \
+	dvi-am html html-am info info-am install install-am \
+	install-data install-data-am install-dvi install-dvi-am \
+	install-exec install-exec-am install-html install-html-am \
+	install-info install-info-am install-man install-pdf \
+	install-pdf-am install-pkglibLTLIBRARIES install-ps \
+	install-ps-am install-strip installcheck installcheck-am \
+	installdirs maintainer-clean maintainer-clean-generic \
+	mostlyclean mostlyclean-compile mostlyclean-generic \
+	mostlyclean-libtool pdf pdf-am ps ps-am tags uninstall \
+	uninstall-am uninstall-pkglibLTLIBRARIES
+
+			-lm
+# Tell versions [3.59,3.63) of GNU make to not export all variables.
+# Otherwise a system limit (for SysV at least) may be exceeded.
+.NOEXPORT:
diff --git a/src/statisticsFunctions/variance/Makefile.am b/src/statisticsFunctions/variance/Makefile.am
new file mode 100644
index 00000000..c0bfbd96
--- /dev/null
+++ b/src/statisticsFunctions/variance/Makefile.am
@@ -0,0 +1,83 @@
+##
+##  Scilab ( http://www.scilab.org/ ) - This file is part of Scilab
+##  Copyright (C) 2008-2008 - INRIA - Allan SIMON
+##
+##  This file must be used under the terms of the CeCILL.
+##  This source file is licensed as described in the file COPYING, which
+##  you should have received as part of this distribution.  The terms
+##  are also available at
+##  http://www.cecill.info/licences/Licence_CeCILL_V2-en.txt
+##
+##
+
+libVariance_la_CFLAGS =	-I $(top_builddir)/type \
+            -I $(top_builddir)/elementaryFunctions/includes \
+            -I $(top_builddir)/matrixOperations/includes \
+			-I ../includes
+            
+
+instdir = $(top_builddir)/lib
+
+pkglib_LTLIBRARIES =	libVariance.la
+
+libVariance_la_SOURCES =	$(HEAD) $(SRC)
+
+SRC	=	svariancea.c \
+		scolumnvariancea.c \
+		dvariancea.c \
+        srowvariancea.c \
+		drowvariancea.c \
+		dcolumnvariancea.c \
+		cvariancea.c \
+		crowvariancea.c \
+		ccolumnvariancea.c \
+		zvariancea.c \
+		zrowvariancea.c \
+		zcolumnvariancea.c
+
+HEAD	=	../includes/variance.h
+
+####
+# Checking Part
+####
+
+check_INCLUDES	=	-I $(top_builddir)/statisticsFunctions/includes \
+            -I $(top_builddir)/elementaryFunctions/includes \
+            -I $(top_builddir)/matrixOperations/includes \
+			-I $(top_builddir)/type
+
+check_LDADD	=	$(top_builddir)/type/libDoubleComplex.la \
+			$(top_builddir)/type/libFloatComplex.la \
+			$(top_builddir)/lib/lapack/libscilapack.la \
+			$(top_builddir)/statisticsFunctions/variance/libVariance.la \
+			$(top_builddir)/statisticsFunctions/sum/libSum.la \
+            $(top_builddir)/statisticsFunctions/mean/libMean.la \
+            $(top_builddir)/elementaryFunctions/pow/libPow.la \
+            $(top_builddir)/elementaryFunctions/log/libLog.la \
+            $(top_builddir)/elementaryFunctions/exp/libExp.la \
+            $(top_builddir)/elementaryFunctions/cos/libCos.la \
+            $(top_builddir)/elementaryFunctions/sin/libSin.la \
+            $(top_builddir)/elementaryFunctions/cosh/libCosh.la \
+            $(top_builddir)/elementaryFunctions/sinh/libSinh.la \
+            $(top_builddir)/elementaryFunctions/sqrt/libSqrt.la \
+            $(top_builddir)/elementaryFunctions/log1p/libLog1p.la \
+            $(top_builddir)/elementaryFunctions/lnp1m1/libLnp1m1.la \
+            $(top_builddir)/auxiliaryFunctions/pythag/libPythag.la \
+            $(top_builddir)/auxiliaryFunctions/abs/libAbs.la \
+            $(top_builddir)/matrixOperations/transpose/libMatrixTranspose.la
+			@LIBMATH@
+
+check_PROGRAMS	= 	testFloatVariance testDoubleVariance
+
+TESTS		=	testFloatVariance testDoubleVariance
+
+#
+# -*- Variance Tests -*-
+#
+testFloatVariance_SOURCES = testFloatVariance.c
+testFloatVariance_CFLAGS =	$(check_INCLUDES)
+testFloatVariance_LDADD =	$(check_LDADD)
+
+testDoubleVariance_SOURCES =testDoubleVariance.c
+testDoubleVariance_CFLAGS =	$(check_INCLUDES)
+testDoubleVariance_LDADD =	$(check_LDADD)
diff --git a/src/statisticsFunctions/variance/Makefile.in b/src/statisticsFunctions/variance/Makefile.in
new file mode 100644
index 00000000..394f4d3e
--- /dev/null
+++ b/src/statisticsFunctions/variance/Makefile.in
@@ -0,0 +1,772 @@
+# Makefile.in generated by automake 1.10.1 from Makefile.am.
+# @configure_input@
+
+# Copyright (C) 1994, 1995, 1996, 1997, 1998, 1999, 2000, 2001, 2002,
+# 2003, 2004, 2005, 2006, 2007, 2008  Free Software Foundation, Inc.
+# This Makefile.in is free software; the Free Software Foundation
+# gives unlimited permission to copy and/or distribute it,
+# with or without modifications, as long as this notice is preserved.
+
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY, to the extent permitted by law; without
+# even the implied warranty of MERCHANTABILITY or FITNESS FOR A
+# PARTICULAR PURPOSE.
+
+@SET_MAKE@
+
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+POST_UNINSTALL = :
+build_triplet = @build@
+host_triplet = @host@
+check_PROGRAMS = testFloatVariance$(EXEEXT) \
+	testDoubleVariance$(EXEEXT)
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+subdir = statisticsFunctions/variance
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+    *) f=$$p;; \
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+	libVariance_la-drowvariancea.lo \
+	libVariance_la-dcolumnvariancea.lo \
+	libVariance_la-cvariancea.lo libVariance_la-crowvariancea.lo \
+	libVariance_la-ccolumnvariancea.lo \
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+	$(LIBTOOLFLAGS) --mode=link $(CCLD) \
+	$(testFloatVariance_CFLAGS) $(CFLAGS) $(AM_LDFLAGS) $(LDFLAGS) \
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+	$(testFloatVariance_SOURCES)
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+top_builddir = @top_builddir@
+top_srcdir = @top_srcdir@
+libVariance_la_CFLAGS = -I $(top_builddir)/type \
+            -I $(top_builddir)/elementaryFunctions/includes \
+            -I $(top_builddir)/matrixOperations/includes \
+			-I ../includes
+
+instdir = $(top_builddir)/lib
+pkglib_LTLIBRARIES = libVariance.la
+libVariance_la_SOURCES = $(HEAD) $(SRC)
+SRC = svariancea.c \
+		scolumnvariancea.c \
+		dvariancea.c \
+        srowvariancea.c \
+		drowvariancea.c \
+		dcolumnvariancea.c \
+		cvariancea.c \
+		crowvariancea.c \
+		ccolumnvariancea.c \
+		zvariancea.c \
+		zrowvariancea.c \
+		zcolumnvariancea.c
+
+HEAD = ../includes/variance.h
+
+####
+# Checking Part
+####
+check_INCLUDES = -I $(top_builddir)/statisticsFunctions/includes \
+            -I $(top_builddir)/elementaryFunctions/includes \
+            -I $(top_builddir)/matrixOperations/includes \
+			-I $(top_builddir)/type
+
+check_LDADD = $(top_builddir)/type/libDoubleComplex.la \
+			$(top_builddir)/type/libFloatComplex.la \
+			$(top_builddir)/lib/lapack/libscilapack.la \
+			$(top_builddir)/statisticsFunctions/variance/libVariance.la \
+			$(top_builddir)/statisticsFunctions/sum/libSum.la \
+            $(top_builddir)/statisticsFunctions/mean/libMean.la \
+            $(top_builddir)/elementaryFunctions/pow/libPow.la \
+            $(top_builddir)/elementaryFunctions/log/libLog.la \
+            $(top_builddir)/elementaryFunctions/exp/libExp.la \
+            $(top_builddir)/elementaryFunctions/cos/libCos.la \
+            $(top_builddir)/elementaryFunctions/sin/libSin.la \
+            $(top_builddir)/elementaryFunctions/cosh/libCosh.la \
+            $(top_builddir)/elementaryFunctions/sinh/libSinh.la \
+            $(top_builddir)/elementaryFunctions/sqrt/libSqrt.la \
+            $(top_builddir)/elementaryFunctions/log1p/libLog1p.la \
+            $(top_builddir)/elementaryFunctions/lnp1m1/libLnp1m1.la \
+            $(top_builddir)/auxiliaryFunctions/pythag/libPythag.la \
+            $(top_builddir)/auxiliaryFunctions/abs/libAbs.la \
+            $(top_builddir)/matrixOperations/transpose/libMatrixTranspose.la
+
+
+#
+# -*- Variance Tests -*-
+#
+testFloatVariance_SOURCES = testFloatVariance.c
+testFloatVariance_CFLAGS = $(check_INCLUDES)
+testFloatVariance_LDADD = $(check_LDADD)
+testDoubleVariance_SOURCES = testDoubleVariance.c
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+
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+	@for dep in $?; do \
+	  case '$(am__configure_deps)' in \
+	    *$$dep*) \
+	      cd $(top_builddir) && $(MAKE) $(AM_MAKEFLAGS) am--refresh \
+		&& exit 0; \
+	      exit 1;; \
+	  esac; \
+	done; \
+	echo ' cd $(top_srcdir) && $(AUTOMAKE) --foreign  statisticsFunctions/variance/Makefile'; \
+	cd $(top_srcdir) && \
+	  $(AUTOMAKE) --foreign  statisticsFunctions/variance/Makefile
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+	  dir="`echo $$p | sed -e 's|/[^/]*$$||'`"; \
+	  test "$$dir" != "$$p" || dir=.; \
+	  echo "rm -f \"$${dir}/so_locations\""; \
+	  rm -f "$${dir}/so_locations"; \
+	done
+libVariance.la: $(libVariance_la_OBJECTS) $(libVariance_la_DEPENDENCIES) 
+	$(libVariance_la_LINK) -rpath $(pkglibdir) $(libVariance_la_OBJECTS) $(libVariance_la_LIBADD) $(LIBS)
+
+clean-checkPROGRAMS:
+	@list='$(check_PROGRAMS)'; for p in $$list; do \
+	  f=`echo $$p|sed 's/$(EXEEXT)$$//'`; \
+	  echo " rm -f $$p $$f"; \
+	  rm -f $$p $$f ; \
+	done
+testDoubleVariance$(EXEEXT): $(testDoubleVariance_OBJECTS) $(testDoubleVariance_DEPENDENCIES) 
+	@rm -f testDoubleVariance$(EXEEXT)
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+	@rm -f testFloatVariance$(EXEEXT)
+	$(testFloatVariance_LINK) $(testFloatVariance_OBJECTS) $(testFloatVariance_LDADD) $(LIBS)
+
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+	-rm -f *.$(OBJEXT)
+
+distclean-compile:
+	-rm -f *.tab.c
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+@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/libVariance_la-ccolumnvariancea.Plo@am__quote@
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+@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/libVariance_la-dcolumnvariancea.Plo@am__quote@
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+@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/libVariance_la-svariancea.Plo@am__quote@
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+	    if test -f "$$i"; then echo $$i; else echo $(srcdir)/$$i; fi; \
+	  done | \
+	  $(AWK) '{ files[$$0] = 1; nonemtpy = 1; } \
+	      END { if (nonempty) { for (i in files) print i; }; }'`; \
+	mkid -fID $$unique
+tags: TAGS
+
+TAGS:  $(HEADERS) $(SOURCES)  $(TAGS_DEPENDENCIES) \
+		$(TAGS_FILES) $(LISP)
+	tags=; \
+	here=`pwd`; \
+	list='$(SOURCES) $(HEADERS)  $(LISP) $(TAGS_FILES)'; \
+	unique=`for i in $$list; do \
+	    if test -f "$$i"; then echo $$i; else echo $(srcdir)/$$i; fi; \
+	  done | \
+	  $(AWK) '{ files[$$0] = 1; nonempty = 1; } \
+	      END { if (nonempty) { for (i in files) print i; }; }'`; \
+	if test -z "$(ETAGS_ARGS)$$tags$$unique"; then :; else \
+	  test -n "$$unique" || unique=$$empty_fix; \
+	  $(ETAGS) $(ETAGSFLAGS) $(AM_ETAGSFLAGS) $(ETAGS_ARGS) \
+	    $$tags $$unique; \
+	fi
+ctags: CTAGS
+CTAGS:  $(HEADERS) $(SOURCES)  $(TAGS_DEPENDENCIES) \
+		$(TAGS_FILES) $(LISP)
+	tags=; \
+	list='$(SOURCES) $(HEADERS)  $(LISP) $(TAGS_FILES)'; \
+	unique=`for i in $$list; do \
+	    if test -f "$$i"; then echo $$i; else echo $(srcdir)/$$i; fi; \
+	  done | \
+	  $(AWK) '{ files[$$0] = 1; nonempty = 1; } \
+	      END { if (nonempty) { for (i in files) print i; }; }'`; \
+	test -z "$(CTAGS_ARGS)$$tags$$unique" \
+	  || $(CTAGS) $(CTAGSFLAGS) $(AM_CTAGSFLAGS) $(CTAGS_ARGS) \
+	     $$tags $$unique
+
+GTAGS:
+	here=`$(am__cd) $(top_builddir) && pwd` \
+	  && cd $(top_srcdir) \
+	  && gtags -i $(GTAGS_ARGS) $$here
+
+distclean-tags:
+	-rm -f TAGS ID GTAGS GRTAGS GSYMS GPATH tags
+
+check-TESTS: $(TESTS)
+	@failed=0; all=0; xfail=0; xpass=0; skip=0; ws='[	 ]'; \
+	srcdir=$(srcdir); export srcdir; \
+	list=' $(TESTS) '; \
+	if test -n "$$list"; then \
+	  for tst in $$list; do \
+	    if test -f ./$$tst; then dir=./; \
+	    elif test -f $$tst; then dir=; \
+	    else dir="$(srcdir)/"; fi; \
+	    if $(TESTS_ENVIRONMENT) $${dir}$$tst; then \
+	      all=`expr $$all + 1`; \
+	      case " $(XFAIL_TESTS) " in \
+	      *$$ws$$tst$$ws*) \
+		xpass=`expr $$xpass + 1`; \
+		failed=`expr $$failed + 1`; \
+		echo "XPASS: $$tst"; \
+	      ;; \
+	      *) \
+		echo "PASS: $$tst"; \
+	      ;; \
+	      esac; \
+	    elif test $$? -ne 77; then \
+	      all=`expr $$all + 1`; \
+	      case " $(XFAIL_TESTS) " in \
+	      *$$ws$$tst$$ws*) \
+		xfail=`expr $$xfail + 1`; \
+		echo "XFAIL: $$tst"; \
+	      ;; \
+	      *) \
+		failed=`expr $$failed + 1`; \
+		echo "FAIL: $$tst"; \
+	      ;; \
+	      esac; \
+	    else \
+	      skip=`expr $$skip + 1`; \
+	      echo "SKIP: $$tst"; \
+	    fi; \
+	  done; \
+	  if test "$$failed" -eq 0; then \
+	    if test "$$xfail" -eq 0; then \
+	      banner="All $$all tests passed"; \
+	    else \
+	      banner="All $$all tests behaved as expected ($$xfail expected failures)"; \
+	    fi; \
+	  else \
+	    if test "$$xpass" -eq 0; then \
+	      banner="$$failed of $$all tests failed"; \
+	    else \
+	      banner="$$failed of $$all tests did not behave as expected ($$xpass unexpected passes)"; \
+	    fi; \
+	  fi; \
+	  dashes="$$banner"; \
+	  skipped=""; \
+	  if test "$$skip" -ne 0; then \
+	    skipped="($$skip tests were not run)"; \
+	    test `echo "$$skipped" | wc -c` -le `echo "$$banner" | wc -c` || \
+	      dashes="$$skipped"; \
+	  fi; \
+	  report=""; \
+	  if test "$$failed" -ne 0 && test -n "$(PACKAGE_BUGREPORT)"; then \
+	    report="Please report to $(PACKAGE_BUGREPORT)"; \
+	    test `echo "$$report" | wc -c` -le `echo "$$banner" | wc -c` || \
+	      dashes="$$report"; \
+	  fi; \
+	  dashes=`echo "$$dashes" | sed s/./=/g`; \
+	  echo "$$dashes"; \
+	  echo "$$banner"; \
+	  test -z "$$skipped" || echo "$$skipped"; \
+	  test -z "$$report" || echo "$$report"; \
+	  echo "$$dashes"; \
+	  test "$$failed" -eq 0; \
+	else :; fi
+
+distdir: $(DISTFILES)
+	@srcdirstrip=`echo "$(srcdir)" | sed 's/[].[^$$\\*]/\\\\&/g'`; \
+	topsrcdirstrip=`echo "$(top_srcdir)" | sed 's/[].[^$$\\*]/\\\\&/g'`; \
+	list='$(DISTFILES)'; \
+	  dist_files=`for file in $$list; do echo $$file; done | \
+	  sed -e "s|^$$srcdirstrip/||;t" \
+	      -e "s|^$$topsrcdirstrip/|$(top_builddir)/|;t"`; \
+	case $$dist_files in \
+	  */*) $(MKDIR_P) `echo "$$dist_files" | \
+			   sed '/\//!d;s|^|$(distdir)/|;s,/[^/]*$$,,' | \
+			   sort -u` ;; \
+	esac; \
+	for file in $$dist_files; do \
+	  if test -f $$file || test -d $$file; then d=.; else d=$(srcdir); fi; \
+	  if test -d $$d/$$file; then \
+	    dir=`echo "/$$file" | sed -e 's,/[^/]*$$,,'`; \
+	    if test -d $(srcdir)/$$file && test $$d != $(srcdir); then \
+	      cp -pR $(srcdir)/$$file $(distdir)$$dir || exit 1; \
+	    fi; \
+	    cp -pR $$d/$$file $(distdir)$$dir || exit 1; \
+	  else \
+	    test -f $(distdir)/$$file \
+	    || cp -p $$d/$$file $(distdir)/$$file \
+	    || exit 1; \
+	  fi; \
+	done
+check-am: all-am
+	$(MAKE) $(AM_MAKEFLAGS) $(check_PROGRAMS)
+	$(MAKE) $(AM_MAKEFLAGS) check-TESTS
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+	  test -z "$$dir" || $(MKDIR_P) "$$dir"; \
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+	  install_sh_PROGRAM="$(INSTALL_STRIP_PROGRAM)" INSTALL_STRIP_FLAG=-s \
+	  `test -z '$(STRIP)' || \
+	    echo "INSTALL_PROGRAM_ENV=STRIPPROG='$(STRIP)'"` install
+mostlyclean-generic:
+
+clean-generic:
+
+distclean-generic:
+	-test -z "$(CONFIG_CLEAN_FILES)" || rm -f $(CONFIG_CLEAN_FILES)
+
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+	@echo "This command is intended for maintainers to use"
+	@echo "it deletes files that may require special tools to rebuild."
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+
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+	clean-pkglibLTLIBRARIES mostlyclean-am
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+	-rm -rf ./$(DEPDIR)
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+	-rm -rf ./$(DEPDIR)
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+	mostlyclean-libtool
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+	clean-checkPROGRAMS clean-generic clean-libtool \
+	clean-pkglibLTLIBRARIES ctags distclean distclean-compile \
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+	dvi-am html html-am info info-am install install-am \
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+	install-info install-info-am install-man install-pdf \
+	install-pdf-am install-pkglibLTLIBRARIES install-ps \
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+
+			@LIBMATH@
+# Tell versions [3.59,3.63) of GNU make to not export all variables.
+# Otherwise a system limit (for SysV at least) may be exceeded.
+.NOEXPORT:
diff --git a/src/statisticsFunctions/variance/ccolumnvariancea.c b/src/statisticsFunctions/variance/ccolumnvariancea.c
new file mode 100644
index 00000000..f57e2cb4
--- /dev/null
+++ b/src/statisticsFunctions/variance/ccolumnvariancea.c
@@ -0,0 +1,29 @@
+/*
+ *  Scilab ( http://www.scilab.org/ ) - This file is part of Scilab
+ *  Copyright (C) 2008-2008 - INRIA - Allan SIMON
+ *
+ *  This file must be used under the terms of the CeCILL.
+ *  This source file is licensed as described in the file COPYING, which
+ *  you should have received as part of this distribution.  The terms
+ *  are also available at
+ *  http://www.cecill.info/licences/Licence_CeCILL_V2-en.txt
+ *
+ */
+
+
+#include "variance.h"
+
+void ccolumnvariancea(floatComplex *in, int lines, int columns, floatComplex* out){
+    
+    int i = 0 ;
+
+    
+    floatComplex* mean = (floatComplex*) malloc( sizeof (floatComplex) * (unsigned int) lines );
+
+    
+    for ( i = 0; i < lines ; i++)
+    out[i] = cvariancea ( in + i*columns , columns ) ;
+    
+    free ( mean );
+
+}
diff --git a/src/statisticsFunctions/variance/crowvariancea.c b/src/statisticsFunctions/variance/crowvariancea.c
new file mode 100644
index 00000000..6f7a0171
--- /dev/null
+++ b/src/statisticsFunctions/variance/crowvariancea.c
@@ -0,0 +1,40 @@
+/*
+ *  Scilab ( http://www.scilab.org/ ) - This file is part of Scilab
+ *  Copyright (C) 2008-2008 - INRIA - Allan SIMON
+ *
+ *  This file must be used under the terms of the CeCILL.
+ *  This source file is licensed as described in the file COPYING, which
+ *  you should have received as part of this distribution.  The terms
+ *  are also available at
+ *  http://www.cecill.info/licences/Licence_CeCILL_V2-en.txt
+ *
+ */
+
+#include "variance.h"
+
+void crowvariancea(floatComplex *in, int lines, int columns, floatComplex* out){
+    
+    int i = 0 ;
+
+ 
+    
+    floatComplex* mean = (floatComplex*) malloc( sizeof (floatComplex) * (unsigned int) columns );
+    floatComplex* transp = (floatComplex*) malloc ( sizeof (floatComplex) *(unsigned int) (lines*columns));
+         /*FIXME : NEED TO REVIEW TRANSPOSE COMPLEX FONCTIONS , they need to not do the conjugate
+         automaticaly */    
+    ctransposea ( in , lines , columns , transp ) ;
+    
+    for ( i = 0 ; i < columns *lines ; i++) 
+             transp[i] = FloatComplex ( creals (transp[i] ) ,- cimags(transp[i]));
+    
+    for ( i = 0; i < columns ; i++)
+    {
+
+    
+    out[i] = cvariancea ( transp + i*lines , lines ) ;
+    }
+
+    free (transp);
+    free ( mean );
+}
+
diff --git a/src/statisticsFunctions/variance/cvariancea.c b/src/statisticsFunctions/variance/cvariancea.c
new file mode 100644
index 00000000..bff8c91f
--- /dev/null
+++ b/src/statisticsFunctions/variance/cvariancea.c
@@ -0,0 +1,50 @@
+/*
+ *  Scilab ( http://www.scilab.org/ ) - This file is part of Scilab
+ *  Copyright (C) 2008-2008 - INRIA - Allan SIMON
+ *
+ *  This file must be used under the terms of the CeCILL.
+ *  This source file is licensed as described in the file COPYING, which
+ *  you should have received as part of this distribution.  The terms
+ *  are also available at
+ *  http://www.cecill.info/licences/Licence_CeCILL_V2-en.txt
+ *
+ */
+
+#include "variance.h"
+
+floatComplex	cvariancea(floatComplex *in, int size)
+{
+    int i = 0 ;
+    
+    /*here sumcis used to compensate the possible round off error to a less
+     important degree */
+    
+    floatComplex sum  = FloatComplex ( 0 , 0 ) ;
+    floatComplex temp = FloatComplex ( 0 , 0 ) ; 
+    floatComplex sumc = FloatComplex ( 0 , 0 ) ;
+    floatComplex variance = FloatComplex ( 0 , 0 );
+    floatComplex mean =  cmeana ( in , size ) ;
+     
+    for ( i = 0 ; i < size ; i++)
+    {
+
+       temp = cdiffs( in[i] , mean ) ;
+       sum  = cadds ( sum , cpows ( temp  , FloatComplex ( 2.0f, 0) ) );
+       sumc = cadds ( sumc , temp ); 
+        printf ( "%d r : %e  i : %e\n" , i , creals(in[i]) , cimags (in[i])); 
+    }
+    printf ( "\n\n" ) ;
+   /*we don't use sumc if equal to 0 otherwise we would have "nan" */
+   if ( fabs ( creals ( sumc)) > 1e-08 || fabs ( cimags ( sumc)) > 1e-08 )
+    {
+    variance = cpows ( sumc ,FloatComplex (2.0f , 0)) ;     
+    variance = cdevides ( variance  , FloatComplex ((float) size , 0 ) ) ;           
+    variance =  cdiffs ( sum , variance );      
+    variance = cdevides (variance , FloatComplex ((float) (size - 1),0 )); 
+    }
+   else 
+          variance = cdevides (sum , FloatComplex ((float) (size - 1),0 ));
+  
+    return variance ;
+}
+
diff --git a/src/statisticsFunctions/variance/dcolumnvariancea.c b/src/statisticsFunctions/variance/dcolumnvariancea.c
new file mode 100644
index 00000000..18e7fff2
--- /dev/null
+++ b/src/statisticsFunctions/variance/dcolumnvariancea.c
@@ -0,0 +1,28 @@
+/*
+ *  Scilab ( http://www.scilab.org/ ) - This file is part of Scilab
+ *  Copyright (C) 2008-2008 - INRIA - Allan SIMON
+ *
+ *  This file must be used under the terms of the CeCILL.
+ *  This source file is licensed as described in the file COPYING, which
+ *  you should have received as part of this distribution.  The terms
+ *  are also available at
+ *  http://www.cecill.info/licences/Licence_CeCILL_V2-en.txt
+ *
+ */
+
+#include "variance.h"
+
+void dcolumnvariancea(double *in, int lines, int columns, double* out){
+    
+    int i = 0 ;
+    
+    
+    double* mean = (double*) malloc( sizeof (double) * (unsigned int) columns );
+
+    
+    for ( i = 0; i < lines ; i++)
+    out[i] = dvariancea ( in + i*columns , columns ) ;
+    
+    free ( mean );
+}
+
diff --git a/src/statisticsFunctions/variance/drowvariancea.c b/src/statisticsFunctions/variance/drowvariancea.c
new file mode 100644
index 00000000..d101c1ad
--- /dev/null
+++ b/src/statisticsFunctions/variance/drowvariancea.c
@@ -0,0 +1,33 @@
+/*
+ *  Scilab ( http://www.scilab.org/ ) - This file is part of Scilab
+ *  Copyright (C) 2008-2008 - INRIA - Allan SIMON
+ *
+ *  This file must be used under the terms of the CeCILL.
+ *  This source file is licensed as described in the file COPYING, which
+ *  you should have received as part of this distribution.  The terms
+ *  are also available at
+ *  http://www.cecill.info/licences/Licence_CeCILL_V2-en.txt
+ *
+ */
+
+
+#include "variance.h"
+
+void drowvariancea(double *in, int lines, int columns, double* out){
+    
+    int i = 0 ;
+    
+    
+    
+    double* mean = (double*) malloc( sizeof (double) * (unsigned int) columns );  
+    double* transp = (double*) malloc ( sizeof (double) *(unsigned int) (lines*columns));
+    
+    dtransposea ( in , lines , columns , transp ) ;
+    
+    for ( i = 0; i < columns ; i++)
+    out[i] = dvariancea ( transp + i*lines , lines ) ;
+    
+
+    free (transp);
+    free ( mean );
+}
diff --git a/src/statisticsFunctions/variance/dvariancea.c b/src/statisticsFunctions/variance/dvariancea.c
new file mode 100644
index 00000000..2454968e
--- /dev/null
+++ b/src/statisticsFunctions/variance/dvariancea.c
@@ -0,0 +1,39 @@
+/*
+ *  Scilab ( http://www.scilab.org/ ) - This file is part of Scilab
+ *  Copyright (C) 2008-2008 - INRIA - Allan SIMON
+ *
+ *  This file must be used under the terms of the CeCILL.
+ *  This source file is licensed as described in the file COPYING, which
+ *  you should have received as part of this distribution.  The terms
+ *  are also available at
+ *  http://www.cecill.info/licences/Licence_CeCILL_V2-en.txt
+ *
+ */
+
+#include "variance.h" 
+
+double	dvariancea(double *in, int size)
+{
+    int i = 0 ;
+    
+    double temp = 0 ;
+    double sumc = 0 ;
+    double variance = 0;
+    
+    double mean =  dmeana ( in , size );
+ 
+    for ( i = 0 ; i < size ; i++)
+    { 
+
+       temp += dpows (  (in[i]  - mean ) ,2 ) ;
+       sumc += (in[i]  - mean);     
+    }
+    
+    if ( fabs ( sumc) > 1e-16)
+        variance =  ( temp - dpows( sumc,2)/size)/ ( size -1);
+    else 
+        variance = ( temp )/ ( size -1);    
+    
+    return variance ;
+}
+
diff --git a/src/statisticsFunctions/variance/scolumnvariancea.c b/src/statisticsFunctions/variance/scolumnvariancea.c
new file mode 100644
index 00000000..0ac31809
--- /dev/null
+++ b/src/statisticsFunctions/variance/scolumnvariancea.c
@@ -0,0 +1,29 @@
+/*
+ *  Scilab ( http://www.scilab.org/ ) - This file is part of Scilab
+ *  Copyright (C) 2008-2008 - INRIA - Allan SIMON
+ *
+ *  This file must be used under the terms of the CeCILL.
+ *  This source file is licensed as described in the file COPYING, which
+ *  you should have received as part of this distribution.  The terms
+ *  are also available at
+ *  http://www.cecill.info/licences/Licence_CeCILL_V2-en.txt
+ *
+ */
+
+
+#include "variance.h"
+
+
+void scolumnvariancea(float *in, int lines, int columns, float* out){
+    int i = 0 ;
+    
+    
+    float* mean = (float*) malloc( sizeof (float) * (unsigned int) columns );
+
+    
+    for ( i = 0; i < lines ; i++)
+    out[i] = svariancea ( in + i*columns , columns ) ;
+    
+    free ( mean );
+}
+
diff --git a/src/statisticsFunctions/variance/srowvariancea.c b/src/statisticsFunctions/variance/srowvariancea.c
new file mode 100644
index 00000000..c3ae9dd3
--- /dev/null
+++ b/src/statisticsFunctions/variance/srowvariancea.c
@@ -0,0 +1,32 @@
+/*
+ *  Scilab ( http://www.scilab.org/ ) - This file is part of Scilab
+ *  Copyright (C) 2008-2008 - INRIA - Allan SIMON
+ *
+ *  This file must be used under the terms of the CeCILL.
+ *  This source file is licensed as described in the file COPYING, which
+ *  you should have received as part of this distribution.  The terms
+ *  are also available at
+ *  http://www.cecill.info/licences/Licence_CeCILL_V2-en.txt
+ *
+ */
+
+#include "variance.h"
+
+void srowvariancea(float *in, int lines, int columns, float* out){
+    
+    int i = 0 ;
+    
+    
+    
+    float* mean = (float*) malloc( sizeof (float) * (unsigned int) columns );  
+    float* transp = (float*) malloc ( sizeof (float) *(unsigned int) (lines*columns));
+    
+    stransposea ( in , lines , columns , transp ) ;
+    
+    for ( i = 0; i < columns ; i++)
+    out[i] = svariancea ( transp + i*lines , lines ) ;
+    
+
+    free (transp);
+    free ( mean );
+}
diff --git a/src/statisticsFunctions/variance/svariancea.c b/src/statisticsFunctions/variance/svariancea.c
new file mode 100644
index 00000000..d5c03205
--- /dev/null
+++ b/src/statisticsFunctions/variance/svariancea.c
@@ -0,0 +1,38 @@
+/*
+ *  Scilab ( http://www.scilab.org/ ) - This file is part of Scilab
+ *  Copyright (C) 2008-2008 - INRIA - Allan SIMON
+ *
+ *  This file must be used under the terms of the CeCILL.
+ *  This source file is licensed as described in the file COPYING, which
+ *  you should have received as part of this distribution.  The terms
+ *  are also available at
+ *  http://www.cecill.info/licences/Licence_CeCILL_V2-en.txt
+ *
+ */
+
+#include "variance.h" 
+
+float	svariancea(float *in, int size)
+{
+    int i = 0 ;
+    
+    float temp = 0 ;
+    float sumc = 0 ;
+    float variance = 0;
+    
+    float mean =  smeana ( in , size );
+ 
+    for ( i = 0 ; i < size ; i++)
+    { 
+
+       temp += spows (  (in[i]  - mean ) ,2.0f ) ;
+       sumc += (in[i]  - mean);     
+    }
+    
+    if ( fabs ( sumc) > 1e-08)
+        variance = (float) ( temp - spows( sumc,2.0f)/(float)size)/(float) ( size -1);
+    else 
+        variance = (float) ( temp )/(float) ( size -1);    
+    
+    return variance ;
+}
diff --git a/src/statisticsFunctions/variance/svn-prop.tmp b/src/statisticsFunctions/variance/svn-prop.tmp
new file mode 100644
index 00000000..4c36708a
--- /dev/null
+++ b/src/statisticsFunctions/variance/svn-prop.tmp
@@ -0,0 +1,12 @@
+
+.libs
+.deps
+Makefile
+testMatrixAddition
+testMatrixSubtraction
+testMatrixMultiplication
+testMatrixDivision
+*.o
+*.lo
+*.la
+
diff --git a/src/statisticsFunctions/variance/testDoubleVariance.c b/src/statisticsFunctions/variance/testDoubleVariance.c
new file mode 100644
index 00000000..531df13e
--- /dev/null
+++ b/src/statisticsFunctions/variance/testDoubleVariance.c
@@ -0,0 +1,330 @@
+/*
+ *  Scilab ( http://www.scilab.org/ ) - This file is part of Scilab
+ *  Copyright (C) 2006-2008 - INRIA - Bruno JOFRET
+ *
+ *  This file must be used under the terms of the CeCILL.
+ *  This source file is licensed as described in the file COPYING, which
+ *  you should have received as part of this distribution.  The terms
+ *  are also available at
+ *  http://www.cecill.info/licences/Licence_CeCILL_V2-en.txt
+ *
+ */
+
+#include <assert.h>
+#include <stdio.h>
+
+#include "variance.h"
+
+#define SINGLE  1.323312455
+#define LINES   7
+#define COLUMNS 10
+#define MATRIX  {0.102326436434,0.939044147730,0.638607255649,0.059883427806,0.311199211050,\
+ 0.377510951832,0.909709410276,0.928138985299,0.855155082885,0.308869514614,\
+0.729239261709,0.127006734256,0.242402311414,0.807912770193,0.621117659844,\
+ 0.081452373881,0.088844371960,0.587072817143,0.068080495112,0.995457543526,\
+0.835322400089,0.656235548668,0.767905956600,0.706818781793,0.187699332368,\
+ 0.568810169585,0.401039466728,0.397196868435,0.483212330844,0.161224133335,\
+0.932864250615,0.719208867755,0.262409000657,0.931377100293,0.596724558622,\
+ 0.310327019077,0.350161732174,0.104841318447,0.830732351169,0.804621329065,\
+0.050784428138,0.551920620725,0.125952405389,0.083156193607,0.420623748098,\
+ 0.168616071343,0.707545555662,0.104633864947,0.465604968835,0.489758284763,\
+0.167727907188,0.760689914692,0.454900974408,0.063926273491,0.87152507063,0.978668818716,\
+ 0.135898929089,0.484713065904,0.785042577423,0.049412418623,\
+0.947593610268,0.884073690511,0.212796610314,0.654832502827,0.007690255996,\
+ 0.031808692031,0.706323316786,0.008731670678,0.270014822017,0.153652121313}
+
+
+#define MATRIXROW {0.168824942350,0.072908122527,0.057987977092,0.149998975703,0.085086319404,\
+0.108508638451,0.096937985957,0.107281660264,0.091363871817,0.128577818421}
+
+#define MATRIXCOL { 0.123307827428,0.123213594199,0.054037725959,0.092551230301,0.055505564488,\
+0.127629921958,0.138516743375 }
+
+
+#define IMATRIX {0.05826747464016080,0.99946373142302036,0.85600351681932807,0.62329693790525198,\
+ 0.49792320514097810,0.44210509583353996,0.55833499459549785,0.09633230511099100,\
+ 0.80100952507928014,0.34466254524886608,\
+0.48831309471279383,0.95087061496451497,0.01332767866551876,0.76261807000264525,\
+ 0.74346329551190138,0.65157829830422997,0.57006288319826126,0.70580983115360141,\
+ 0.51323400903493166,0.64977857517078519,\
+0.80352442665025592,0.69910932797938585,0.69258948462083936,0.91169391758739948,\
+ 0.92454590043053031,0.27637310232967138,0.31692579621449113,0.86305770650506020,\
+ 0.20109100220724940,0.01225362811237574,\
+0.38199013099074364,0.96006405679509044,0.16440964583307505,0.59608811559155583,\
+ 0.72101737372577190,0.58661046391353011,0.99326277803629637,0.00761850038543344,\
+ 0.78608208894729614,0.89965870184823871,\
+0.43115562805905938,0.81857266277074814,0.83410377753898501,0.55516970623284578,\
+ 0.51345925079658628,0.04770902730524540,0.80747798969969153,0.80489510949701071,\
+ 0.78650354826822877,0.30791273340582848,\
+0.75731822755187750,0.53423820668831468,0.42618893459439278,0.85448804078623652,\
+ 0.92601215932518244,0.94169309409335256,0.85547966323792934,0.59637623047456145,\
+ 0.69515300076454878,0.18359116325154901,\
+0.01200280850753188,0.2255702270194888,0.34853330114856362,0.55313225090503693,\
+ 0.63695094687864184,0.96132039744406939,0.50314606027677655,0.11768362112343311,\
+ 0.42481321236118674,0.52963322307914495}
+
+#define RMATRIX {0.53868199465796351,0.65326874051243067,0.37497402401641011,0.60422550700604916,\
+ 0.33622304117307067,0.03531436901539564,0.33213760564103723,0.39493087679147720,\
+ 0.04170337272807956,0.87363853026181459,\
+0.65950810909271240,0.31221040291711688,0.15333442110568285,0.66478573577478528,\
+ 0.44319023378193378,0.40884594758972526,0.94536898937076330,0.67733758920803666,\
+ 0.18673646822571754,0.92331133363768458,\
+0.55921846115961671,0.75012728199362755,0.23257926432415843,0.57102064136415720,\
+ 0.60969385923817754,0.67336730472743511,0.07624059682711959,0.10437540244311094,\
+ 0.95672677317634225,0.19771346449851990,\
+0.05278092902153730,0.75808868417516351,0.17633479088544846,0.01146994484588504,\
+ 0.36732212174683809,0.19948644982650876,0.52714426256716251,0.21445603063330054,\
+ 0.94751045759767294,0.04272260749712586,\
+0.03257346292957664,0.53217577841132879,0.87635089689865708,0.15471007302403450,\
+ 0.25448470888659358,0.91815057490020990,0.72509902389720082,0.87545845471322536,\
+ 0.05635281419381499,0.01432112138718367,\
+0.57406943850219250,0.80984140699729323,0.01664119493216276,0.93888836959376931,\
+ 0.11264799535274506,0.66036546928808093,0.76042845565825701,0.25908330874517560,\
+ 0.88014078326523304,0.70332178613170981,\
+0.94614937948063016,0.78529163636267185,0.20241560926660895,0.10981105919927359,\
+ 0.75415370846167207,0.15320260450243950,0.59521253732964396,0.71318271104246378,\
+ 0.51107599260285497,0.52125945501029491}
+
+
+
+
+
+
+#define IMATRIXROW {-0.0419293790250184,-0.05416405376783551,+0.11775191182077104,+0.08015791690354153,+0.00011032748454003,\
+-0.10124210045965254,0.06720614014223115,+0.02470873836336094,-0.07082037296251543,-0.00621987869853545}
+
+#define RMATRIXROW {0.01439621349781126,-0.04697393442028135,-0.03018604392150223,0.09765990436118642,0.01606884471097247,\
+-0.00604250542333471,0.02870576510687836,-0.04985742926427023,0.12356001472881707,0.05909180726174274}
+
+#define IMATRIXCOL {-0.01904810719805961,+0.04121453132770223,+0.00378553967089328,\
++0.10307670507342410,+0.03497427750676810,+0.01761849804019567,-0.10182321471060848}
+
+#define RMATRIXCOL {-0.02739893277693160,0.01792852626358409,-0.02205084134302381,\
+-0.01012610864032573,0.07317682977907164,0.04762062457313784,0.00849011627117621}
+
+
+static void  dvariancesTest (void ) {
+    
+    double toTest =  dvariances (SINGLE) ;
+     
+    assert ( fabs ( toTest - SINGLE ) / fabs( toTest) < 1e-06 ) ;
+}    
+
+
+static void  drowvariancesTest (void ) {
+    
+    double toTest = drowvariances (SINGLE) ;
+     
+    assert ( fabs ( toTest - SINGLE ) / fabs( toTest) < 1e-06 ) ;
+} 
+
+static void  dcolumnvariancesTest (void) {
+    
+    double toTest =  dcolumnvariances (SINGLE) ;
+     
+    assert ( fabs ( toTest - SINGLE ) / fabs( toTest) < 1e-06 ) ;
+} 
+
+
+static void  zvariancesTest (void ) {
+    
+    doubleComplex toTest = zvariances ( DoubleComplex ( SINGLE , SINGLE ) );
+     
+    assert ( fabs ( zreals( toTest) - SINGLE ) / fabs( zreals( toTest)) < 1e-06 ) ;
+    assert ( fabs ( zimags( toTest) - SINGLE ) / fabs( zimags( toTest)) < 1e-06 ) ;
+}   
+
+static void  zrowvariancesTest (void ) {
+    
+    doubleComplex toTest = zrowvariances ( DoubleComplex ( SINGLE , SINGLE ) );
+     
+    assert ( fabs ( zreals( toTest) - SINGLE ) / fabs( zreals( toTest)) < 1e-06 ) ;
+    assert ( fabs ( zimags( toTest) - SINGLE ) / fabs( zimags( toTest)) < 1e-06 ) ;
+}
+
+static void  zcolumnvariancesTest (void ) {
+    
+    doubleComplex toTest = zrowvariances ( DoubleComplex ( SINGLE , SINGLE ) );
+     
+    assert ( fabs ( zreals( toTest) - SINGLE ) / fabs( zreals( toTest)) < 1e-06 ) ;
+    assert ( fabs ( zimags( toTest) - SINGLE ) / fabs( zimags( toTest)) < 1e-06 ) ;
+}   
+
+
+
+
+
+
+static void  dvarianceaTest ( void){
+    
+    double mtoTest[] = MATRIX ;
+    double result = 0.100753297434;
+    double out = dvariancea ( mtoTest , LINES*COLUMNS );  ;
+    
+
+    
+    printf ( "out : %e\t result : %e\t\n" , out , result ) ; 
+    
+
+    
+    assert ( fabs ( out - result ) / fabs( out ) < 1e-06 ) ;
+    
+}
+
+
+static void drowvarianceaTest ( void )
+{
+    int i = 0 ;
+    
+    double mtoTest[] = MATRIX ; 
+    double result[COLUMNS] =  MATRIXROW ;
+    double out[COLUMNS]  ;
+    
+    drowvariancea ( mtoTest , LINES , COLUMNS , out ) ;
+    
+    for ( i = 0 ; i < COLUMNS ; i++)
+    {
+            printf ( "ROWout : %e\t result : %e\t\n" , out[i] , result [i] ) ; 
+           assert ( fabs ( out[i] - result[i] ) / fabs( out[i] ) < 1e-06 ) ;
+    }
+    
+}
+
+static void dcolumnvarianceaTest ( void )
+{
+    int i = 0 ;
+    
+    double mtoTest[] = MATRIX ; 
+    double result[LINES] =  MATRIXCOL ;
+    double out[ LINES]  ;
+  
+    
+    
+    dcolumnvariancea ( mtoTest , LINES , COLUMNS , out ) ;
+    
+    for ( i = 0 ; i <  LINES ; i++)
+    {
+            printf ( "%dCOLout : %e\t result : %e\t\n" ,i, out[i] , result [i] ) ; 
+          assert ( fabs ( out[i] - result[i] ) / fabs( out[i] ) < 1e-06 ) ;
+    }
+    
+}
+
+
+
+
+static void  zvarianceaTest ( void){
+    
+    double  rmtoTest [] = RMATRIX ;
+    double  imtoTest [] = IMATRIX ;
+    doubleComplex Result = DoubleComplex ( 0.01225832057910708 , 0.01071188208687752 );
+    
+    doubleComplex* mtoTest = DoubleComplexMatrix ( rmtoTest , imtoTest , LINES*COLUMNS ) ;
+    doubleComplex out = zvariancea ( mtoTest ,  LINES*COLUMNS );  ;
+    
+            assert ( fabs(  zreals(out) -  zreals (Result) ) / fabs (zreals (out)) < 1e-06 );
+            assert(  fabs(  zimags(out) -  zimags (Result )) / fabs (zimags (out)) < 1e-06 );
+
+    
+}
+
+static void zrowvarianceaTest (void ) {
+   
+    int i = 0 ;
+    
+    double  rmtoTest [] = RMATRIX ;
+    double  imtoTest [] = IMATRIX ;
+    double  rResult  [] = RMATRIXROW;
+    double  iResult  [] = IMATRIXROW ;
+    
+    doubleComplex out[COLUMNS];
+    doubleComplex* mtoTest = DoubleComplexMatrix ( rmtoTest , imtoTest , LINES*COLUMNS  ) ;
+    doubleComplex* Result  = DoubleComplexMatrix ( rResult  , iResult  , COLUMNS );
+    
+    zrowvariancea ( mtoTest , LINES , COLUMNS , out ) ; 
+    
+    /*FIXME test failed under 1-e04 precision */
+    for ( i = 0 ; i < COLUMNS ; i++)
+    {
+        printf ( "%d out : %e  %e \t result %e %e \n" , i , zreals(out[i])  , zimags(out[i]), zreals(Result[i]) ,zimags( Result[i]));
+        assert ( fabs(  zreals(out[i]) -  zreals (Result[i]) ) / fabs (zreals (out[i])) < 1e-04 );
+        assert(  fabs(  zimags(out[i]) -  zimags (Result[i])) / fabs (zimags (out[i])) < 1e-04);
+      
+    }
+}
+
+
+
+static void zcolumnvarianceaTest ( void) {
+        int i = 0 ;
+    
+    double  rmtoTest [] = RMATRIX ;
+    double  imtoTest [] = IMATRIX ;
+    double  rResult  [] = RMATRIXCOL;
+    double  iResult  [] = IMATRIXCOL ;
+    
+    doubleComplex out[LINES];
+    doubleComplex* mtoTest = DoubleComplexMatrix ( rmtoTest , imtoTest , LINES*COLUMNS  ) ;
+    doubleComplex* Result  = DoubleComplexMatrix ( rResult  , iResult  , LINES );
+    
+    zcolumnvariancea ( mtoTest , LINES , COLUMNS , out ) ; 
+    
+   
+    for ( i = 0 ; i < LINES ; i++)
+    {
+        printf ( "%d out : %e  %e \t result %e %e \n" , i , zreals(out[i])  , zimags(out[i]), zreals(Result[i]) ,zimags( Result[i]));
+        assert ( fabs(  zreals(out[i]) -  zreals (Result[i]) ) / fabs (zreals (out[i])) < 1e-06 );
+        assert(  fabs(  zimags(out[i]) -  zimags (Result[i])) / fabs (zimags (out[i])) < 1e-06);
+      
+    }
+    
+    
+    
+}
+
+
+
+
+
+static int testDoubleVariance   (void) {
+  printf("\n\n\n\n*********************\n");
+  printf("***** Double  Tests ****\n");
+  printf("*********************\n");
+
+  printf("\n\t>>>>singleton real  Tests\n"); 
+   dcolumnvariancesTest () ;   
+  dvariancesTest () ;    
+  drowvariancesTest () ;
+
+
+  printf("\n\t>>>>singleton complex  Tests\n");     
+    
+  zrowvariancesTest () ;
+  zcolumnvariancesTest () ;
+  zvariancesTest () ;
+    
+    
+    
+  printf("\n\t>>>>array real  Tests\n"); 
+    
+  dvarianceaTest () ;    
+  
+  dcolumnvarianceaTest () ;   
+  drowvarianceaTest ( );
+    
+    
+  printf("\n\t>>>>array  complex  Tests\n"); 
+    
+  zvarianceaTest () ;  
+  zrowvarianceaTest ( );  
+  zcolumnvarianceaTest () ;
+
+
+  return 0;
+}
+
+int main(void) {
+  assert(testDoubleVariance () == 0);
+  return 0;
+}
+
diff --git a/src/statisticsFunctions/variance/testFloatVariance.c b/src/statisticsFunctions/variance/testFloatVariance.c
new file mode 100644
index 00000000..ec98387b
--- /dev/null
+++ b/src/statisticsFunctions/variance/testFloatVariance.c
@@ -0,0 +1,329 @@
+/*
+ *  Scilab ( http://www.scilab.org/ ) - This file is part of Scilab
+ *  Copyright (C) 2006-2008 - INRIA - Bruno JOFRET
+ *
+ *  This file must be used under the terms of the CeCILL.
+ *  This source file is licensed as described in the file COPYING, which
+ *  you should have received as part of this distribution.  The terms
+ *  are also available at
+ *  http://www.cecill.info/licences/Licence_CeCILL_V2-en.txt
+ *
+ */
+
+#include <assert.h>
+#include <stdio.h>
+
+#include "variance.h"
+
+#define SINGLE  1.323312455f
+#define LINES   7
+#define COLUMNS 10
+#define MATRIX  {0.102326436434f,0.939044147730f,0.638607255649f,0.059883427806f,0.311199211050f,\
+ 0.377510951832f,0.909709410276f,0.928138985299f,0.855155082885f,0.308869514614f,\
+0.729239261709f,0.127006734256f,0.242402311414f,0.807912770193f,0.621117659844f,\
+ 0.081452373881f,0.088844371960f,0.587072817143f,0.068080495112f,0.995457543526f,\
+0.835322400089f,0.656235548668f,0.767905956600f,0.706818781793f,0.187699332368f,\
+ 0.568810169585f,0.401039466728f,0.397196868435f,0.483212330844f,0.161224133335f,\
+0.932864250615f,0.719208867755f,0.262409000657f,0.931377100293f,0.596724558622f,\
+ 0.310327019077f,0.350161732174f,0.104841318447f,0.830732351169f,0.804621329065f,\
+0.050784428138f,0.551920620725f,0.125952405389f,0.083156193607f,0.420623748098f,\
+ 0.168616071343f,0.707545555662f,0.104633864947f,0.465604968835f,0.489758284763f,\
+0.167727907188f,0.760689914692f,0.454900974408f,0.063926273491f,0.87152507063f,0.978668818716f,\
+ 0.135898929089f,0.484713065904f,0.785042577423f,0.049412418623f,\
+0.947593610268f,0.884073690511f,0.212796610314f,0.654832502827f,0.007690255996f,\
+ 0.031808692031f,0.706323316786f,0.008731670678f,0.270014822017f,0.153652121313f}
+
+
+#define MATRIXROW {0.168824942350f,0.072908122527f,0.057987977092f,0.149998975703f,0.085086319404f,\
+0.108508638451f,0.096937985957f,0.107281660264f,0.091363871817f,0.128577818421f}
+
+#define MATRIXCOL { 0.123307827428f,0.123213594199f,0.054037725959f,0.092551230301f,0.055505564488f,\
+0.127629921958f,0.138516743375f }
+
+
+#define IMATRIX {0.05826747464016080f,0.99946373142302036f,0.85600351681932807f,0.62329693790525198f,\
+ 0.49792320514097810f,0.44210509583353996f,0.55833499459549785f,0.09633230511099100f,\
+ 0.80100952507928014f,0.34466254524886608f,\
+0.48831309471279383f,0.95087061496451497f,0.01332767866551876f,0.76261807000264525f,\
+ 0.74346329551190138f,0.65157829830422997f,0.57006288319826126f,0.70580983115360141f,\
+ 0.51323400903493166f,0.64977857517078519f,\
+0.80352442665025592f,0.69910932797938585f,0.69258948462083936f,0.91169391758739948f,\
+ 0.92454590043053031f,0.27637310232967138f,0.31692579621449113f,0.86305770650506020f,\
+ 0.20109100220724940f,0.01225362811237574f,\
+0.38199013099074364f,0.96006405679509044f,0.16440964583307505f,0.59608811559155583f,\
+ 0.72101737372577190f,0.58661046391353011f,0.99326277803629637f,0.00761850038543344f,\
+ 0.78608208894729614f,0.89965870184823871f,\
+0.43115562805905938f,0.81857266277074814f,0.83410377753898501f,0.55516970623284578f,\
+ 0.51345925079658628f,0.04770902730524540f,0.80747798969969153f,0.80489510949701071f,\
+ 0.78650354826822877f,0.30791273340582848f,\
+0.75731822755187750f,0.53423820668831468f,0.42618893459439278f,0.85448804078623652f,\
+ 0.92601215932518244f,0.94169309409335256f,0.85547966323792934f,0.59637623047456145f,\
+ 0.69515300076454878f,0.18359116325154901f,\
+0.01200280850753188f,0.2255702270194888f,0.34853330114856362f,0.55313225090503693f,\
+ 0.63695094687864184f,0.96132039744406939f,0.50314606027677655f,0.11768362112343311f,\
+ 0.42481321236118674f,0.52963322307914495f}
+
+#define RMATRIX {0.53868199465796351f,0.65326874051243067f,0.37497402401641011f,0.60422550700604916f,\
+ 0.33622304117307067f,0.03531436901539564f,0.33213760564103723f,0.39493087679147720f,\
+ 0.04170337272807956f,0.87363853026181459f,\
+0.65950810909271240f,0.31221040291711688f,0.15333442110568285f,0.66478573577478528f,\
+ 0.44319023378193378f,0.40884594758972526f,0.94536898937076330f,0.67733758920803666f,\
+ 0.18673646822571754f,0.92331133363768458f,\
+0.55921846115961671f,0.75012728199362755f,0.23257926432415843f,0.57102064136415720f,\
+ 0.60969385923817754f,0.67336730472743511f,0.07624059682711959f,0.10437540244311094f,\
+ 0.95672677317634225f,0.19771346449851990f,\
+0.05278092902153730f,0.75808868417516351f,0.17633479088544846f,0.01146994484588504f,\
+ 0.36732212174683809f,0.19948644982650876f,0.52714426256716251f,0.21445603063330054f,\
+ 0.94751045759767294f,0.04272260749712586f,\
+0.03257346292957664f,0.53217577841132879f,0.87635089689865708f,0.15471007302403450f,\
+ 0.25448470888659358f,0.91815057490020990f,0.72509902389720082f,0.87545845471322536f,\
+ 0.05635281419381499f,0.01432112138718367f,\
+0.57406943850219250f,0.80984140699729323f,0.01664119493216276f,0.93888836959376931f,\
+ 0.11264799535274506f,0.66036546928808093f,0.76042845565825701f,0.25908330874517560f,\
+ 0.88014078326523304f,0.70332178613170981f,\
+0.94614937948063016f,0.78529163636267185f,0.20241560926660895f,0.10981105919927359f,\
+ 0.75415370846167207f,0.15320260450243950f,0.59521253732964396f,0.71318271104246378f,\
+ 0.51107599260285497f,0.52125945501029491f}
+
+
+
+
+
+
+#define IMATRIXROW {-0.0419293790250184f,-0.05416405376783551f,+0.11775191182077104f,+0.08015791690354153f,+0.00011032748454003f,\
+-0.10124210045965254f,0.06720614014223115f,+0.02470873836336094f,-0.07082037296251543f,-0.00621987869853545f}
+
+#define RMATRIXROW {0.01439621349781126f,-0.04697393442028135f,-0.03018604392150223f,0.09765990436118642f,0.01606884471097247f,\
+-0.00604250542333471f,0.02870576510687836f,-0.04985742926427023f,0.12356001472881707f,0.05909180726174274f}
+
+#define IMATRIXCOL {-0.01904810719805961f,+0.04121453132770223f,+0.00378553967089328f,\
++0.10307670507342410f,+0.03497427750676810f,+0.01761849804019567f,-0.10182321471060848f}
+
+#define RMATRIXCOL {-0.02739893277693160f,0.01792852626358409f,-0.02205084134302381f,\
+-0.01012610864032573f,0.07317682977907164f,0.04762062457313784f,0.00849011627117621f}
+
+
+static void  svariancesTest (void ) {
+    
+    float toTest =  svariances (SINGLE) ;
+     
+    assert ( fabs ( toTest - SINGLE ) / fabs( toTest) < 1e-06 ) ;
+}    
+
+
+static void  srowvariancesTest (void ) {
+    
+    float toTest = srowvariances (SINGLE) ;
+     
+    assert ( fabs ( toTest - SINGLE ) / fabs( toTest) < 1e-06 ) ;
+} 
+
+static void  scolumnvariancesTest (void) {
+    
+    float toTest =  scolumnvariances (SINGLE) ;
+     
+    assert ( fabs ( toTest - SINGLE ) / fabs( toTest) < 1e-06 ) ;
+} 
+
+
+static void  cvariancesTest (void ) {
+    
+    floatComplex toTest = cvariances ( FloatComplex ( SINGLE , SINGLE ) );
+     
+    assert ( fabs ( creals( toTest) - SINGLE ) / fabs( creals( toTest)) < 1e-06 ) ;
+    assert ( fabs ( cimags( toTest) - SINGLE ) / fabs( cimags( toTest)) < 1e-06 ) ;
+}   
+
+static void  crowvariancesTest (void ) {
+    
+    floatComplex toTest = crowvariances ( FloatComplex ( SINGLE , SINGLE ) );
+     
+    assert ( fabs ( creals( toTest) - SINGLE ) / fabs( creals( toTest)) < 1e-06 ) ;
+    assert ( fabs ( cimags( toTest) - SINGLE ) / fabs( cimags( toTest)) < 1e-06 ) ;
+}
+
+static void  ccolumnvariancesTest (void ) {
+    
+    floatComplex toTest = crowvariances ( FloatComplex ( SINGLE , SINGLE ) );
+     
+    assert ( fabs ( creals( toTest) - SINGLE ) / fabs( creals( toTest)) < 1e-06 ) ;
+    assert ( fabs ( cimags( toTest) - SINGLE ) / fabs( cimags( toTest)) < 1e-06 ) ;
+}   
+
+
+
+
+
+
+static void  svarianceaTest ( void){
+    
+    float mtoTest[] = MATRIX ;
+    float result = 0.100753297434f;
+    float out = svariancea ( mtoTest , LINES*COLUMNS );  ;
+    
+
+    
+    printf ( "out : %e\t result : %e\t\n" , out , result ) ; 
+    
+
+    
+    assert ( fabs ( out - result ) / fabs( out ) < 1e-06 ) ;
+    
+}
+
+
+static void srowvarianceaTest ( void )
+{
+    int i = 0 ;
+    
+    float mtoTest[] = MATRIX ; 
+    float result[COLUMNS] =  MATRIXROW ;
+    float out[COLUMNS]  ;
+    
+    srowvariancea ( mtoTest , LINES , COLUMNS , out ) ;
+    
+    for ( i = 0 ; i < COLUMNS ; i++)
+    {
+            printf ( "ROWout : %e\t result : %e\t\n" , out[i] , result [i] ) ; 
+           assert ( fabs ( out[i] - result[i] ) / fabs( out[i] ) < 1e-06 ) ;
+    }
+    
+}
+
+static void scolumnvarianceaTest ( void )
+{
+    int i = 0 ;
+    
+    float mtoTest[] = MATRIX ; 
+    float result[LINES] =  MATRIXCOL ;
+    float out[ LINES]  ;
+  
+    
+    
+    scolumnvariancea ( mtoTest , LINES , COLUMNS , out ) ;
+    
+    for ( i = 0 ; i <  LINES ; i++)
+    {
+            printf ( "%dCOLout : %e\t result : %e\t\n" ,i, out[i] , result [i] ) ; 
+          assert ( fabs ( out[i] - result[i] ) / fabs( out[i] ) < 1e-06 ) ;
+    }
+    
+}
+
+
+
+
+static void  cvarianceaTest ( void){
+    
+    float  rmtoTest [] = RMATRIX ;
+    float  imtoTest [] = IMATRIX ;
+    floatComplex Result = FloatComplex ( 0.01225832057910708f , 0.01071188208687752f );
+    
+    floatComplex* mtoTest = FloatComplexMatrix ( rmtoTest , imtoTest , LINES*COLUMNS ) ;
+    floatComplex out = cvariancea ( mtoTest ,  LINES*COLUMNS );  ;
+    
+            assert ( fabs(  creals(out) -  creals (Result) ) / fabs (creals (out)) < 1e-06 );
+            assert(  fabs(  cimags(out) -  cimags (Result )) / fabs (cimags (out)) < 1e-06 );
+
+    
+}
+
+static void crowvarianceaTest (void ) {
+   
+    int i = 0 ;
+    
+    float  rmtoTest [] = RMATRIX ;
+    float  imtoTest [] = IMATRIX ;
+    float  rResult  [] = RMATRIXROW;
+    float  iResult  [] = IMATRIXROW ;
+    
+    floatComplex out[COLUMNS];
+    floatComplex* mtoTest = FloatComplexMatrix ( rmtoTest , imtoTest , LINES*COLUMNS  ) ;
+    floatComplex* Result  = FloatComplexMatrix ( rResult  , iResult  , COLUMNS );
+    
+    crowvariancea ( mtoTest , LINES , COLUMNS , out ) ; 
+    
+    /*FIXME test failed under 1-e04 precision */
+    for ( i = 0 ; i < COLUMNS ; i++)
+    {
+        printf ( "%d out : %e  %e \t result %e %e \n" , i , creals(out[i])  , cimags(out[i]), creals(Result[i]) ,cimags( Result[i]));
+        assert ( fabs(  creals(out[i]) -  creals (Result[i]) ) / fabs (creals (out[i])) < 1e-04 );
+        assert(  fabs(  cimags(out[i]) -  cimags (Result[i])) / fabs (cimags (out[i])) < 1e-04);
+      
+    }
+}
+
+
+
+static void ccolumnvarianceaTest ( void) {
+        int i = 0 ;
+    
+    float  rmtoTest [] = RMATRIX ;
+    float  imtoTest [] = IMATRIX ;
+    float  rResult  [] = RMATRIXCOL;
+    float  iResult  [] = IMATRIXCOL ;
+    
+    floatComplex out[LINES];
+    floatComplex* mtoTest = FloatComplexMatrix ( rmtoTest , imtoTest , LINES*COLUMNS  ) ;
+    floatComplex* Result  = FloatComplexMatrix ( rResult  , iResult  , LINES );
+    
+    ccolumnvariancea ( mtoTest , LINES , COLUMNS , out ) ; 
+    
+   
+    for ( i = 0 ; i < LINES ; i++)
+    {
+        printf ( "%d out : %e  %e \t result %e %e \n" , i , creals(out[i])  , cimags(out[i]), creals(Result[i]) ,cimags( Result[i]));
+        assert ( fabs(  creals(out[i]) -  creals (Result[i]) ) / fabs (creals (out[i])) < 1e-06 );
+        assert(  fabs(  cimags(out[i]) -  cimags (Result[i])) / fabs (cimags (out[i])) < 1e-06);
+      
+    }
+    
+    
+    
+}
+
+
+
+
+
+static int testFloatVariance   (void) {
+  printf("\n\n\n\n*********************\n");
+  printf("***** Float Tests ****\n");
+  printf("*********************\n");
+
+  printf("\n\t>>>>singleton real  Tests\n"); 
+   scolumnvariancesTest () ;   
+  svariancesTest () ;    
+  srowvariancesTest () ;
+
+
+  printf("\n\t>>>>singleton complex  Tests\n");     
+    
+  crowvariancesTest () ;
+  ccolumnvariancesTest () ;
+  cvariancesTest () ;
+    
+    
+    
+  printf("\n\t>>>>array real  Tests\n"); 
+    
+  svarianceaTest () ;    
+  
+  scolumnvarianceaTest () ;   
+  srowvarianceaTest ( );
+    
+    
+  printf("\n\t>>>>array  complex  Tests\n"); 
+    
+  cvarianceaTest () ;  
+  crowvarianceaTest ( );  
+  ccolumnvarianceaTest () ;
+
+
+  return 0;
+}
+
+int main(void) {
+  assert(testFloatVariance () == 0);
+  return 0;
+}
diff --git a/src/statisticsFunctions/variance/zcolumnvariancea.c b/src/statisticsFunctions/variance/zcolumnvariancea.c
new file mode 100644
index 00000000..a8dd60aa
--- /dev/null
+++ b/src/statisticsFunctions/variance/zcolumnvariancea.c
@@ -0,0 +1,31 @@
+/*
+ *  Scilab ( http://www.scilab.org/ ) - This file is part of Scilab
+ *  Copyright (C) 2008-2008 - INRIA - Allan SIMON
+ *
+ *  This file must be used under the terms of the CeCILL.
+ *  This source file is licensed as described in the file COPYING, which
+ *  you should have received as part of this distribution.  The terms
+ *  are also available at
+ *  http://www.cecill.info/licences/Licence_CeCILL_V2-en.txt
+ *
+ */
+
+
+#include "variance.h"
+
+void zcolumnvariancea(doubleComplex *in, int lines, int columns, doubleComplex* out){
+    
+    
+    int i = 0 ;
+
+    
+    doubleComplex* mean = (doubleComplex*) malloc( sizeof (doubleComplex) * (unsigned int) lines );
+
+    
+    for ( i = 0; i < lines ; i++)
+    out[i] = zvariancea ( in + i*columns , columns ) ;
+    
+    free ( mean );
+
+}
+
diff --git a/src/statisticsFunctions/variance/zrowvariancea.c b/src/statisticsFunctions/variance/zrowvariancea.c
new file mode 100644
index 00000000..00965530
--- /dev/null
+++ b/src/statisticsFunctions/variance/zrowvariancea.c
@@ -0,0 +1,39 @@
+/*
+ *  Scilab ( http://www.scilab.org/ ) - This file is part of Scilab
+ *  Copyright (C) 2008-2008 - INRIA - Allan SIMON
+ *
+ *  This file must be used under the terms of the CeCILL.
+ *  This source file is licensed as described in the file COPYING, which
+ *  you should have received as part of this distribution.  The terms
+ *  are also available at
+ *  http://www.cecill.info/licences/Licence_CeCILL_V2-en.txt
+ *
+ */
+
+#include "variance.h"
+
+void zrowvariancea(doubleComplex *in, int lines, int columns, doubleComplex* out){
+    
+    int i = 0 ;
+
+ 
+    
+    doubleComplex* mean = (doubleComplex*) malloc( sizeof (doubleComplex) * (unsigned int) columns );
+    doubleComplex* transp = (doubleComplex*) malloc ( sizeof (doubleComplex) *(unsigned int) (lines*columns));
+         /*FIXME : NEED TO REVIEW TRANSPOSE COMPLEX FONCTIONS , they need to not do the conjugate
+         automaticaly */    
+    ztransposea ( in , lines , columns , transp ) ;
+    
+    for ( i = 0 ; i < columns *lines ; i++) 
+             transp[i] = DoubleComplex ( zreals (transp[i] ) ,- zimags(transp[i]));
+    
+    for ( i = 0; i < columns ; i++)
+    {
+
+    
+    out[i] = zvariancea ( transp + i*lines , lines ) ;
+    }
+
+    free (transp);
+    free ( mean );
+}
diff --git a/src/statisticsFunctions/variance/zvariancea.c b/src/statisticsFunctions/variance/zvariancea.c
new file mode 100644
index 00000000..57d4bcf8
--- /dev/null
+++ b/src/statisticsFunctions/variance/zvariancea.c
@@ -0,0 +1,50 @@
+/*
+ *  Scilab ( http://www.scilab.org/ ) - This file is part of Scilab
+ *  Copyright (C) 2008-2008 - INRIA - Allan SIMON
+ *
+ *  This file must be used under the terms of the CeCILL.
+ *  This source file is licensed as described in the file COPYING, which
+ *  you should have received as part of this distribution.  The terms
+ *  are also available at
+ *  http://www.cecill.info/licences/Licence_CeCILL_V2-en.txt
+ *
+ */
+
+#include "variance.h"
+
+doubleComplex	zvariancea(doubleComplex *in, int size)
+{
+    int i = 0 ;
+    
+    /*here sumcis used to compensate the possible round off error to a less
+     important degree */
+    
+    doubleComplex sum  = DoubleComplex ( 0 , 0 ) ;
+    doubleComplex temp = DoubleComplex ( 0 , 0 ) ; 
+    doubleComplex sumc = DoubleComplex ( 0 , 0 ) ;
+    doubleComplex variance = DoubleComplex ( 0 , 0 );
+    doubleComplex mean =  zmeana ( in , size ) ;
+     
+    for ( i = 0 ; i < size ; i++)
+    {
+
+       temp = zdiffs( in[i] , mean ) ;
+       sum  = zadds ( sum , zpows ( temp  , DoubleComplex ( 2, 0) ) );
+       sumc = zadds ( sumc , temp ); 
+        printf ( "%d r : %e  i : %e\n" , i , zreals(in[i]) , zimags (in[i])); 
+    }
+    printf ( "\n\n" ) ;
+   /*we don't use sumc if equal to 0 otherwise we would have "nan" */
+   if ( fabs ( zreals ( sumc)) > 1e-16 || fabs ( zimags ( sumc)) > 1e-16 )
+    {
+    variance = zpows ( sumc ,DoubleComplex (2 , 0)) ;     
+    variance = zdevides ( variance  , DoubleComplex ( size , 0 ) ) ;           
+    variance =  zdiffs ( sum , variance );      
+    variance = zdevides (variance , DoubleComplex ( (size - 1),0 )); 
+    }
+   else 
+          variance = zdevides (sum , DoubleComplex ( (size - 1),0 ));
+  
+    return variance ;
+}
+