/*--------------------------------------*/
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);
}
/*------------------------------------------------------------------*/
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);
}