From e7af93817fd17588b94b8625e0132d3170154897 Mon Sep 17 00:00:00 2001 From: simon Date: Fri, 25 Jul 2008 15:30:52 +0000 Subject: added functions which computes variances , the float complex functions seems to have a weak precision ( 1-e04 instead of 1-e06 for some value ) --- src/statisticsFunctions/variance/srowvariancea.c | 32 ++++++++++++++++++++++++ 1 file changed, 32 insertions(+) create mode 100644 src/statisticsFunctions/variance/srowvariancea.c (limited to 'src/statisticsFunctions/variance/srowvariancea.c') 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 ); +} -- cgit