DLLEXPORT void XGBoosterUpdateInteract( void *handle, void *dtrain, const char *action ){
Booster *bst = static_cast<Booster*>(handle);
DMatrix *dtr = static_cast<DMatrix*>(dtrain);
bst->CheckInit(); dtr->CheckInit();
std::string act( action );
bst->UpdateInteract( act, *dtr );
}
DLLEXPORT void XGBoosterBoostOneIter( void *handle, void *dtrain,
float *grad, float *hess, size_t len, int bst_group ){
Booster *bst = static_cast<Booster*>(handle);
DMatrix *dtr = static_cast<DMatrix*>(dtrain);
bst->CheckInit(); dtr->CheckInit();
bst->BoostOneIter( *dtr, grad, hess, len, bst_group );
}
// xgboost implementation
DLLEXPORT void *XGBoosterCreate( void *dmats[], size_t len ){
std::vector<xgboost::regrank::DMatrix*> mats;
for( size_t i = 0; i < len; ++i ){
DMatrix *dtr = static_cast<DMatrix*>(dmats[i]);
dtr->CheckInit();
log_debug("XGBoosterCreate: * i=%u", (unsigned int)i);
mats.push_back( dtr );
log_debug("XGBoosterCreate: ** i=%u", (unsigned int)i);
}
log_debug("XGBoosterCreate: xxxx");
log_debug("XGBoosterCreate: mats=%u", (unsigned int)mats.size());
void *booster = new Booster( mats );
log_debug("XGBoosterCreate: booster=%p", booster);
return booster;
}
DLLEXPORT void XGBoosterUpdateOneIter( void *handle, void *dtrain ){
Booster *bst = static_cast<Booster*>(handle);
DMatrix *dtr = static_cast<DMatrix*>(dtrain);
bst->CheckInit(); dtr->CheckInit();
bst->UpdateOneIter( *dtr );
}