* Adding mean function

!! WARNING !!
For the moment only the global mean is implemented, the one
with only one parameter.
More will follow.

8 files changed, 973 insertions, 1 deletions

diff --git a/src/statisticsFunctions/mean/Makefile.am b/src/statisticsFunctions/mean/Makefile.am
index dd2d9358..7fac26c5 100644
--- a/src/statisticsFunctions/mean/Makefile.am
+++ b/src/statisticsFunctions/mean/Makefile.am
@@ -43,7 +43,7 @@ check_PROGRAMS	= 	testFloatMean testDoubleMean
 TESTS		=	testFloatMean testDoubleMean
 
 #
-# -*- Meanine Tests -*-
+# -*- Mean Tests -*-
 #
 testFloatMean_SOURCES = testFloatMean.c
 testFloatMean_CFLAGS =	$(check_INCLUDES)
diff --git a/src/statisticsFunctions/mean/Makefile.in b/src/statisticsFunctions/mean/Makefile.in
new file mode 100644
index 00000000..00628302
--- /dev/null
+++ b/src/statisticsFunctions/mean/Makefile.in
@@ -0,0 +1,671 @@
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+		dmeana.c \
+		cmeana.c \
+		zmeana.c
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+
+#
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+#
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+@am__fastdepCC_TRUE@	mv -f $(DEPDIR)/testFloatMean-testFloatMean.Tpo $(DEPDIR)/testFloatMean-testFloatMean.Po
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+mostlyclean-libtool:
+	-rm -f *.lo
+
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+	    if test -f ./$$tst; then dir=./; \
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+	    test -f $(distdir)/$$file \
+	    || cp -p $$d/$$file $(distdir)/$$file \
+	    || exit 1; \
+	  fi; \
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diff --git a/src/statisticsFunctions/mean/cmeana.c b/src/statisticsFunctions/mean/cmeana.c
new file mode 100644
index 00000000..ad2a66fc
--- /dev/null
+++ b/src/statisticsFunctions/mean/cmeana.c
@@ -0,0 +1,24 @@
+/*
+ *  Scilab ( http://www.scilab.org/ ) - This file is part of Scilab
+ *  Copyright (C) 2008-2008 - 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 "mean.h"
+
+floatComplex cmeana(floatComplex *in, int size) {
+  floatComplex accumulate = FloatComplex(0.0f, 0.0f);
+  int i = 0;
+
+  for (i = 0; i < size; ++i)
+    {
+      accumulate = cadds(accumulate, in[i]);
+    }
+  return FloatComplex(creals(accumulate) / (float) size, cimags(accumulate) / (float) size);
+}
diff --git a/src/statisticsFunctions/mean/dmeana.c b/src/statisticsFunctions/mean/dmeana.c
new file mode 100644
index 00000000..db11766a
--- /dev/null
+++ b/src/statisticsFunctions/mean/dmeana.c
@@ -0,0 +1,25 @@
+/*
+ *  Scilab ( http://www.scilab.org/ ) - This file is part of Scilab
+ *  Copyright (C) 2008-2008 - 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 "mean.h"
+
+double dmeana(double *in, int size) {
+  double accumulate = 0.0;
+  int i = 0;
+
+  for (i = 0; i < size; ++i)
+    {
+      accumulate += in[i];
+    }
+  return accumulate / (double) size;
+
+}
diff --git a/src/statisticsFunctions/mean/smeana.c b/src/statisticsFunctions/mean/smeana.c
new file mode 100644
index 00000000..f4b1cd10
--- /dev/null
+++ b/src/statisticsFunctions/mean/smeana.c
@@ -0,0 +1,25 @@
+/*
+ *  Scilab ( http://www.scilab.org/ ) - This file is part of Scilab
+ *  Copyright (C) 2008-2008 - 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 "mean.h"
+
+float smeana(float *in, int size) {
+  float accumulate = 0.0f;
+  int i = 0;
+
+  for (i = 0; i < size; ++i)
+    {
+      accumulate += in[i];
+    }
+  return accumulate / (float) size;
+
+}
diff --git a/src/statisticsFunctions/mean/testDoubleMean.c b/src/statisticsFunctions/mean/testDoubleMean.c
new file mode 100644
index 00000000..2f970aef
--- /dev/null
+++ b/src/statisticsFunctions/mean/testDoubleMean.c
@@ -0,0 +1,101 @@
+/*
+ *  Scilab ( http://www.scilab.org/ ) - This file is part of Scilab
+ *  Copyright (C) 2008-2008 - 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 "mean.h"
+
+/* #define LOCAL_DEBUG */
+
+static int dmeansTest(void) {
+  double value1 = 3.0f;
+  double value2 = 1.123456789f;
+
+  assert(dmeans(value1) == 3.0f);
+  assert(dmeans(value2) == 1.123456789f);
+  return 0;
+}
+
+static int dmeanaTest(void) {
+  double table1[3] = {3.0, 3.0, 3.0};
+  double table2[5] = {9.186784563,
+		     9.186784563,
+		     9.186784563,
+		     9.186784563,
+		     9.186784563};
+
+  assert(dmeana(table1, 3) == 3.0);
+  assert(dmeana(table2, 5) == 9.186784563);
+  return 0;
+}
+
+static int zmeansTest(void) {
+  doubleComplex value1 = DoubleComplex(3.0, 3.0);
+  doubleComplex value2 = DoubleComplex(1.123456789, 1.123456789);
+
+  assert(zreals(zmeans(value1)) == 3.0);
+  assert(zimags(zmeans(value1)) == 3.0);
+  assert(zreals(zmeans(value2)) == 1.123456789);
+  assert(zimags(zmeans(value2)) == 1.123456789);
+  return 0;
+}
+
+static int zmeanaTest(void) {
+  doubleComplex value1 = DoubleComplex(3.0, 3.0);
+  doubleComplex table1[3];
+  doubleComplex value2 = DoubleComplex(9.186784563,9.186784563);
+  doubleComplex table2[5];
+
+  table1[0] = value1;
+  table1[1] = value1;
+  table1[2] = value1;
+
+  table2[0] = value2;
+  table2[1] = value2;
+  table2[2] = value2;
+  table2[3] = value2;
+  table2[4] = value2;
+
+#ifdef LOCAL_DEBUG
+  printf("--------\n");
+  printf("%e\n", zimags(zmeana(table1, 3)));
+  printf("%e\n", zreals(zmeana(table2, 5)));
+  printf("%e\n", zimags(zmeana(table2, 5)));
+  printf("%e\n", zreals(zmeana(table2, 5)));
+  printf("%e\n", zimags(zmeana(table2, 5)));
+  printf("--------\n");
+#endif
+  assert(zreals(zmeana(table1, 3)) == 3.0);
+  assert(zimags(zmeana(table1, 3)) == 3.0);
+  assert(zreals(zmeana(table2, 5)) == 9.186784563);
+  assert(zimags(zmeana(table2, 5)) == 9.186784563);
+
+  return 0;
+}
+
+static int testMean(void) {
+
+  printf("\n>>>> Mean Tests\n");
+  dmeansTest();
+  dmeanaTest();
+  zmeansTest();
+  zmeanaTest();
+
+  return 0;
+}
+
+
+
+int main(void) {
+  assert(testMean() == 0);
+  return 0;
+}
diff --git a/src/statisticsFunctions/mean/testFloatMean.c b/src/statisticsFunctions/mean/testFloatMean.c
new file mode 100644
index 00000000..46c463fb
--- /dev/null
+++ b/src/statisticsFunctions/mean/testFloatMean.c
@@ -0,0 +1,102 @@
+/*
+ *  Scilab ( http://www.scilab.org/ ) - This file is part of Scilab
+ *  Copyright (C) 2008-2008 - 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 "mean.h"
+
+/* #define LOCAL_DEBUG */
+
+static int smeansTest(void) {
+  float value1 = 3.0f;
+  float value2 = 1.123456789f;
+
+  assert(smeans(value1) == 3.0f);
+  assert(smeans(value2) == 1.123456789f);
+  return 0;
+}
+
+static int smeanaTest(void) {
+  float table1[3] = {3.0f, 3.0f, 3.0f};
+  float table2[5] = {9.186784563f,
+		     9.186784563f,
+		     9.186784563f,
+		     9.186784563f,
+		     9.186784563f};
+
+  assert(smeana(table1, 3) == 3.0f);
+  assert(smeana(table2, 5) == 9.186784563f);
+  assert(smeana(table2, 5) -  9.186784f < 1e-6);
+  return 0;
+}
+
+static int cmeansTest(void) {
+  floatComplex value1 = FloatComplex(3.0f, 3.0f);
+  floatComplex value2 = FloatComplex(1.123456789f, 1.123456789f);
+
+  assert(creals(cmeans(value1)) == 3.0f);
+  assert(cimags(cmeans(value1)) == 3.0f);
+  assert(creals(cmeans(value2)) == 1.123456789f);
+  assert(cimags(cmeans(value2)) == 1.123456789f);
+  return 0;
+}
+
+static int cmeanaTest(void) {
+  floatComplex value1 = FloatComplex(3.0f, 3.0f);
+  floatComplex table1[3];
+  floatComplex value2 = FloatComplex(9.186784563f,9.186784563f);
+  floatComplex table2[5];
+
+  table1[0] = value1;
+  table1[1] = value1;
+  table1[2] = value1;
+
+  table2[0] = value2;
+  table2[1] = value2;
+  table2[2] = value2;
+  table2[3] = value2;
+  table2[4] = value2;
+
+#ifdef LOCAL_DEBUG
+  printf("--------\n");
+  printf("%e\n", cimags(cmeana(table1, 3)));
+  printf("%e\n", creals(cmeana(table2, 5)));
+  printf("%e\n", cimags(cmeana(table2, 5)));
+  printf("%e\n", creals(cmeana(table2, 5)));
+  printf("%e\n", cimags(cmeana(table2, 5)));
+  printf("--------\n");
+#endif
+  assert(creals(cmeana(table1, 3)) == 3.0f);
+  assert(cimags(cmeana(table1, 3)) == 3.0f);
+  assert(creals(cmeana(table2, 5)) == 9.186784563f);
+  assert(cimags(cmeana(table2, 5)) == 9.186784563f);
+  assert(creals(cmeana(table2, 5)) -  9.186784f < 1e-6);
+  assert(cimags(cmeana(table2, 5)) -  9.186784f < 1e-6);
+
+  return 0;
+}
+
+static int testMean(void) {
+
+  printf("\n>>>> Mean Tests\n");
+  smeansTest();
+  smeanaTest();
+  cmeansTest();
+  cmeanaTest();
+
+  return 0;
+}
+
+int main(void) {
+  assert(testMean() == 0);
+  return 0;
+}
diff --git a/src/statisticsFunctions/mean/zmeana.c b/src/statisticsFunctions/mean/zmeana.c
new file mode 100644
index 00000000..aae80ffc
--- /dev/null
+++ b/src/statisticsFunctions/mean/zmeana.c
@@ -0,0 +1,24 @@
+/*
+ *  Scilab ( http://www.scilab.org/ ) - This file is part of Scilab
+ *  Copyright (C) 2008-2008 - 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 "mean.h"
+
+doubleComplex zmeana(doubleComplex *in, int size) {
+  doubleComplex accumulate = DoubleComplex(0.0f, 0.0f);
+  int i = 0;
+
+  for (i = 0; i < size; ++i)
+    {
+      accumulate = zadds(accumulate, in[i]);
+    }
+  return DoubleComplex(zreals(accumulate) / (double) size, zimags(accumulate) / (double) size);
+}