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