Author: bugman
Date: Tue Aug 26 18:09:39 2014
New Revision: 25304
URL: http://svn.gna.org/viewcvs/relax?rev=25304&view=rev
Log:
Changed the internal variables of the chi-squared gradient C code to match the
Python code.
Modified:
trunk/target_functions/c_chi2.c
Modified: trunk/target_functions/c_chi2.c
URL:
http://svn.gna.org/viewcvs/relax/trunk/target_functions/c_chi2.c?rev=25304&r1=25303&r2=25304&view=diff
==============================================================================
--- trunk/target_functions/c_chi2.c (original)
+++ trunk/target_functions/c_chi2.c Tue Aug 26 18:09:39 2014
@@ -103,13 +103,13 @@
*/
/* Declarations. */
- int data_index, param_index;
+ int i, j;
/* Calculate the chi-squared gradient. */
- for (param_index = 0; param_index < num_params; ++param_index) {
- dchi2[param_index] = 0.0;
- for (data_index = 0; data_index < num_points; ++data_index) {
- dchi2[param_index] += -2.0 / square(errors[data_index]) *
(data[data_index] - back_calc_vals[data_index]) *
back_calc_grad[param_index][data_index];
+ for (j = 0; j < num_params; ++j) {
+ dchi2[j] = 0.0;
+ for (i = 0; i < num_points; ++i) {
+ dchi2[j] += -2.0 / square(errors[i]) * (data[i] -
back_calc_vals[i]) * back_calc_grad[j][i];
}
}
}
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