Function GetFeatureCount

catboost/libs/data/loader.cpp:308–320

    }

    static size_t GetFeatureCount(TConstArrayRef<TColumn> columns) {
        size_t featureCount = 0;

        for (auto column : columns) {
            if (IsFactorColumn(column.Type)) {
                ++featureCount;
            } else if (column.Type == EColumn::Features) {
                featureCount += GetFeatureCount(column.SubColumns);
            }
        }

        return featureCount;
    }


    TVector<TString> GetFeatureNames(