diff options
Diffstat (limited to '2.3-1/src/c/statisticsFunctions/stdevf/zrowstdevfa.c')
-rw-r--r-- | 2.3-1/src/c/statisticsFunctions/stdevf/zrowstdevfa.c | 63 |
1 files changed, 63 insertions, 0 deletions
diff --git a/2.3-1/src/c/statisticsFunctions/stdevf/zrowstdevfa.c b/2.3-1/src/c/statisticsFunctions/stdevf/zrowstdevfa.c new file mode 100644 index 00000000..bfa77aa5 --- /dev/null +++ b/2.3-1/src/c/statisticsFunctions/stdevf/zrowstdevfa.c @@ -0,0 +1,63 @@ +/* + * 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 zrowstdevfa(doubleComplex *in1, int lines, int columns, doubleComplex*in2, doubleComplex* out){ + int i = 0; + int j = 0; + doubleComplex temp = DoubleComplex(0.0,0.0); + doubleComplex accumulate = DoubleComplex(0.0,0.0); + doubleComplex accumulateFre = DoubleComplex(0.0,0.0); + + zrowmeanfa(in1, lines, columns, in2, out ); + + /*we first multiply each zell of the input matrix by its coefficient*/ + for (j = 0; j < columns; ++j) + { + + accumulate = DoubleComplex(0.0,0.0); + accumulateFre =DoubleComplex(0.0,0.0); + temp = DoubleComplex(0.0,0.0); + + for ( i = 0 ; i < lines; ++i ) + { + + temp = zpows ( zdiffs (in1[lines*j + i] ,out[j] ) ,DoubleComplex (2.0, 0.0 ) ); + temp = zmuls( in2[lines*j + i] , temp); + + accumulate = zadds( temp , accumulate); + accumulateFre = zadds(in2[lines*j + i] ,accumulateFre ); + + } + + if (lines <= 1) + { + out[j] = zmuls (DoubleComplex(0.0,0.0) , accumulate ) ; + } + else + { + if( dabss (zreals(accumulate)) <= 3e-14 ) accumulate = DoubleComplex(dabss(zreals(accumulate)) ,zimags(accumulate)); + if( dabss (zimags(accumulate)) <= 3e-14 ) accumulate = DoubleComplex(zreals(accumulate) ,dabss(zimags(accumulate))); + + + accumulate = zrdivs(accumulate, zdiffs(accumulateFre ,DoubleComplex(1.0,0.0))); + out[j] = zsqrts(accumulate); + + } + } + +} |