Function BuildTargets

catboost/private/libs/algo/plot.cpp:319–334

}

static TVector<TVector<float>> BuildTargets(const TVector<TProcessedDataProvider>& datasetParts) {
    const auto targetDim = datasetParts.empty() ? 0 : datasetParts[0].TargetData->GetTargetDimension();

    auto result = TVector<TVector<float>>(targetDim);
    for (auto targetIdx : xrange(targetDim)) {
        result[targetIdx].reserve(GetDocCount(datasetParts));
    }
    for (const auto& datasetPart : datasetParts) {
        CB_ENSURE(datasetPart.TargetData->GetTargetDimension() == targetDim, "Inconsistent target dimensionality between dataset parts");
        const auto target = *datasetPart.TargetData->GetTarget();
        for (auto targetIdx : xrange(targetDim)) {
            result[targetIdx].insert(result[targetIdx].end(), target[targetIdx].begin(), target[targetIdx].end());
        }
    }
    return result;
}

static TVector<float> BuildWeights(const TVector<TProcessedDataProvider>& datasetParts) {
    TVector<float> result;