diff options
Diffstat (limited to '2.3-1/src/c/statisticsFunctions/stdevf/crowstdevfa.c')
-rw-r--r-- | 2.3-1/src/c/statisticsFunctions/stdevf/crowstdevfa.c | 59 |
1 files changed, 59 insertions, 0 deletions
diff --git a/2.3-1/src/c/statisticsFunctions/stdevf/crowstdevfa.c b/2.3-1/src/c/statisticsFunctions/stdevf/crowstdevfa.c new file mode 100644 index 00000000..38d8cb23 --- /dev/null +++ b/2.3-1/src/c/statisticsFunctions/stdevf/crowstdevfa.c @@ -0,0 +1,59 @@ +/* + * 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 "stdevf.h" +#include "meanf.h" +#include "abs.h" + + +void crowstdevfa(floatComplex *in1, int lines, int columns, floatComplex*in2, floatComplex* out){ + int i = 0; + int j = 0; + floatComplex temp = FloatComplex(0.0f,0.0f); + floatComplex accumulate = FloatComplex(0.0f,0.0f); + floatComplex accumulateFre = FloatComplex(0.0f,0.0f); + + crowmeanfa(in1, lines, columns, in2, out ); + + /*we first multiply each cell of the input matrix by its coefficient*/ + for (j = 0; j < columns; ++j) + { + accumulate = FloatComplex(0.0f,0.0f); + accumulateFre =FloatComplex(0.0f,0.0f); + temp = FloatComplex(0.0f,0.0f); + + for ( i = 0 ; i < lines; ++i ) + { + + temp = cpows ( cdiffs (in1[lines*j + i] ,out[j] ) ,FloatComplex (2.0f, 0.0f ) ); + temp = cmuls( in2[lines*j + i] , temp); + + accumulate = cadds( temp , accumulate); + accumulateFre = cadds (in2[lines*j + i] ,accumulateFre ); + + } + + if (lines <= 1) + { + out[j] = cmuls (FloatComplex(0.0f,0.0f) , accumulate ) ; + } + else + { + if( sabss (creals(accumulate)) <= 3e-6 ) accumulate = FloatComplex(sabss(creals(accumulate)) ,cimags(accumulate)); + if( sabss (cimags(accumulate)) <= 3e-6 ) accumulate = FloatComplex(creals(accumulate) ,sabss(cimags(accumulate))); + accumulate = crdivs (accumulate , cdiffs (accumulateFre ,FloatComplex(1.0f,0.0f)) ); + out[j] =csqrts(accumulate); + } + } + +} |