Lines Matching refs:_df
476 void CvANN_MLP::calc_activ_func_deriv( CvMat* _xf, CvMat* _df, in calc_activ_func_deriv() argument
481 double* df = _df->data.db; in calc_activ_func_deriv()
483 assert( CV_IS_MAT_CONT( _xf->type & _df->type ) ); in calc_activ_func_deriv()
936 CvMat _w, _dw, hdr1, hdr2, ghdr1, ghdr2, _df; in train_backprop() local
979 _df = *x2; in train_backprop()
980 _df.data.db = df[i]; in train_backprop()
981 calc_activ_func_deriv( x2, &_df, _w.data.db + _w.rows*_w.cols ); in train_backprop()
1018 cvInitMatHeader( &_df, 1, n2, CV_64F, df[i] ); in train_backprop()
1019 cvMul( grad1, &_df, grad1 ); in train_backprop()
1131 CvMat _w, _dEdw, hdr1, hdr2, ghdr1, ghdr2, _df; in train_rprop() local
1169 _df = *x2; in train_rprop()
1170 _df.data.db = df[i]; in train_rprop()
1171 calc_activ_func_deriv( x2, &_df, _w.data.db + _w.rows*_w.cols ); in train_rprop()
1217 cvInitMatHeader( &_df, dcount, n2, CV_64F, df[i] ); in train_rprop()
1218 cvMul( grad1, &_df, grad1 ); in train_rprop()