Method ComputeNonAdditiveMetrics

catboost/private/libs/algo/plot.cpp:291–317

}

void TMetricsPlotCalcer::ComputeNonAdditiveMetrics(ui32 begin, ui32 end) {
    const auto& target = NonAdditiveMetricsData.Target;
    const auto& weights = NonAdditiveMetricsData.Weights;
    CB_ENSURE(target.size() == 1, "Multitarget metrics are not supported yet");

    for (auto idx : xrange(begin, end)) {
        auto approx = LoadApprox(idx);
        auto results = EvalErrorsWithCaching(
            approx,
            /*approxDelts*/{},
            /*isExpApprox*/false,
            To2DConstArrayRef<float>(target),
            weights,
            {},
            NonAdditiveMetrics,
            &Executor
        );

        for (auto metricId : xrange(NonAdditiveMetrics.size())) {
            NonAdditiveMetricPlots[metricId][idx] = results[metricId];
        }

        if (idx != 0) {
            DeleteApprox(idx - 1);
        }
    }
}

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