Function CreateRawObjectsDataProvider

catboost/libs/data/ut/objects_ut.cpp:248–288

    }

    TRawObjectsDataProvider CreateRawObjectsDataProvider(
        const TVector<TVector<float>>& srcFloatFeatures,
        const TVector<TVector<ui32>>& srcCatFeatures,
        const TVector<THashMap<ui32, TString>>& catFeaturesHashToString,
        const TCommonObjectsData& commonData,
        std::pair<bool, bool> useFeatureTypes,
        NPar::ILocalExecutor* localExecutor
    ) {
        TRawObjectsData data;
        ui32 featureId = 0;

        TVector<ui32> catFeatureIndices;

        if (useFeatureTypes.first) {
            InitFeatures(srcFloatFeatures, *commonData.SubsetIndexing, &featureId, &data.FloatFeatures);
        }
        TCommonObjectsData commonDataCopy = commonData;
        if (useFeatureTypes.second) {
            ui32 catFeaturesIndicesStart = featureId;

            commonDataCopy.CatFeaturesHashToString = MakeAtomicShared<TVector<THashMap<ui32, TString>>>(
                catFeaturesHashToString
            );
            InitFeatures(srcCatFeatures, *commonData.SubsetIndexing, &featureId, &data.CatFeatures);

            for (ui32 idx : xrange(catFeaturesIndicesStart, featureId)) {
                catFeatureIndices.push_back(idx);
            }
        }

        TFeaturesLayout featuresLayout(featureId, catFeatureIndices, {}, {}, {});
        commonDataCopy.FeaturesLayout = MakeIntrusive<TFeaturesLayout>(featuresLayout);

        return TRawObjectsDataProvider(
            Nothing(),
            std::move(commonDataCopy),
            std::move(data),
            /*skipCheck*/ false,
            localExecutor
        );
    }

    using TCatHashToString = std::pair<ui32, TString>;