Class TFeatureGroupsData

catboost/libs/data/objects.h:566–592

    struct TFeatureGroupsData {
        TVector<TMaybe<TFeaturesGroupIndex>> FlatFeatureIndexToGroupPart;
        TVector<TFeaturesGroup> MetaData;
        TVector<THolder<IFeaturesGroupArray>> SrcData; // [groupIdx]

    public:
        TFeatureGroupsData() = default;

        // SrcData is not initialized here - create separately
        TFeatureGroupsData(
            const NCB::TFeaturesLayout& featuresLayout,
            TVector<TFeaturesGroup>&& metaData
        );

        // Execute tasks added to resourceConstrainedExecutor to complete GetSubset operation
        void GetSubsetWithScheduling(
            const TFeaturesArraySubsetIndexing* subsetIndexing,

            // needed only for sparse features
            const TMaybe<TFeaturesArraySubsetInvertedIndexing>& subsetInvertedIndexing,
            TResourceConstrainedExecutor* resourceConstrainedExecutor,
            TFeatureGroupsData* subsetData
        ) const;

        void Save(NPar::ILocalExecutor* localExecutor, IBinSaver* binSaver) const;
        void Load(const TArraySubsetIndexing<ui32>* subsetIndexing, IBinSaver* binSaver);
    };


    struct TPackedBinaryFeaturesData {