/*--------------------------------------*/
 virtual void writeText(const char *fn, int digits, 
                        bool doSparse=false,
                        bool doAppend=false) const {
   AzIntArr ia; 
   ia.range(0, colNum()); 
   writeText(fn, &ia, digits, doSparse, doAppend); 
 }
Пример #2
0
/*------------------------------------------------------------------*/
double AzTaskTools::analyzeLoss(AzLossType loss_type, 
                            const AzDvect *v_p, 
                            const AzDvect *v_y, 
                            const AzIntArr *inp_ia_dx, 
                            double p_coeff)
{
  if (loss_type == AzLoss_None) {
    return -1; 
  }
  const double *p = v_p->point(); 
  const double *y = v_y->point(); 

  AzIntArr iq; 
  const AzIntArr *ia_dx = inp_ia_dx; 
  if (ia_dx == NULL) {
    iq.range(0, v_p->rowNum()); 
    ia_dx = &iq;     
  }

  double total_loss = 0; 
  int num; 
  const int *dxs = ia_dx->point(&num); 
  int ix; 
  for (ix = 0; ix < num; ++ix) {
    int dx = dxs[ix]; 

    double loss = AzLoss::getLoss(loss_type, p[dx]*p_coeff, y[dx]); 
    total_loss += loss; 
  }

  double avg_loss = 0; 
  if (num > 0) {
    avg_loss = total_loss / (double)num; 
  }
  return avg_loss; 
}
 /*--------------------------------------*/
 virtual void writeText(const char *fn, int digits) const {
   AzIntArr ia; 
   ia.range(0, rowNum()); 
   writeText(fn, &ia, digits);  
 }