Function GetMaybeGeneratedModelFeatureIds

catboost/libs/fstr/calc_fstr.cpp:617–647

}

TVector<TString> GetMaybeGeneratedModelFeatureIds(
    const TFullModel& model,
    const TFeaturesLayoutPtr datasetFeaturesLayout)
{
    const NCB::TFeaturesLayout modelFeaturesLayout = MakeFeaturesLayout(model);
    TVector<TString> modelFeatureIds(modelFeaturesLayout.GetExternalFeatureCount());
    if (AllFeatureIdsEmpty(modelFeaturesLayout.GetExternalFeaturesMetaInfo())) {
        if (datasetFeaturesLayout) {
            THashMap<ui32, ui32> columnIndexesReorderMap; // unused
            CheckModelAndDatasetCompatibility(model, *datasetFeaturesLayout, &columnIndexesReorderMap);
            const auto datasetFeaturesMetaInfo = datasetFeaturesLayout->GetExternalFeaturesMetaInfo();
            if (!AllFeatureIdsEmpty(datasetFeaturesMetaInfo)) {
                CB_ENSURE(
                    datasetFeaturesMetaInfo.size() >= modelFeatureIds.size(),
                    "Dataset has less features than the model"
                );
                for (auto i : xrange(modelFeatureIds.size())) {
                    modelFeatureIds[i] = datasetFeaturesMetaInfo[i].Name;
                }
            }
        }
    } else {
        modelFeatureIds = modelFeaturesLayout.GetExternalFeatureIds();
    }
    for (size_t i = 0; i < modelFeatureIds.size(); ++i) {
        if (modelFeatureIds[i].empty()) {
            modelFeatureIds[i] = ToString(i);
        }
    }
    return modelFeatureIds;
}

TVector<TString> GetMaybeGeneratedModelFeatureIds(const TFullModel& model, const TDataProviderPtr dataset) {
    TFeaturesLayoutPtr datasetFeaturesLayout;