Method CreateLogs

catboost/libs/train_lib/eval_feature.cpp:258–330

}

void TFeatureEvaluationSummary::CreateLogs(
    const NCatboostOptions::TOutputFilesOptions& outputFileOptions,
    const NCatboostOptions::TFeatureEvalOptions& featureEvalOptions,
    const TVector<THolder<IMetric>>& metrics,
    ui32 iterationCount,
    bool isTest,
    ui32 foldRangeBegin,
    ui32 absoluteOffset
) {
    if (!outputFileOptions.AllowWriteFiles()) {
        return;
    }

    const ui32 featureSetCount = GetFeatureSetCount();
    const auto topLevelTrainDir = outputFileOptions.GetTrainDir();
    const auto& metricsHistory = MetricsHistory[isTest];
    const auto& featureStrengths = FeatureStrengths[isTest];
    const auto& regularFeatureStrengths = RegularFeatureStrengths[isTest];
    const auto& models = Models[isTest];
    const auto& metricsMetaJson = GetJsonMeta(
        iterationCount,
        outputFileOptions.GetName(),
        GetConstPointers(metrics),
        /*learnSetNames*/{"learn"},
        /*testSetNames*/{"test"},
        /*parametersName=*/ "",
        ELaunchMode::CV);
    const ui32 absoluteBegin = foldRangeBegin + featureEvalOptions.Offset;
    const ui32 absoluteEnd = absoluteBegin + featureEvalOptions.FoldCount;
    const bool useSetZeroAlways = !isTest && featureEvalOptions.FeatureEvalMode != NCB::EFeatureEvalMode::OneVsOthers;
    for (ui32 setIdx : xrange(featureSetCount)) {
        for (ui32 absoluteFoldIdx : xrange(absoluteBegin, absoluteEnd)) {
            const auto foldDir = MakeFoldDirName(
                featureEvalOptions,
                isTest,
                setIdx,
                absoluteFoldIdx);
            auto options = outputFileOptions;
            options.SetTrainDir(JoinFsPaths(topLevelTrainDir, foldDir));
            TLogger logger;
            InitializeFileLoggers(
                options,
                metricsMetaJson,
                /*namesPrefix*/"",
                /*isDetailedProfile*/false,
                &logger);
            CreateLogFromHistory(
                options,
                metrics,
                metricsHistory[useSetZeroAlways ? 0 : setIdx][absoluteFoldIdx - absoluteOffset],
                iterationCount,
                &logger
            );
            const auto fstrPath = options.CreateFstrIternalFullPath();
            if (!fstrPath.empty()) {
                OutputStrengthDescriptions(
                    featureStrengths[useSetZeroAlways ? 0 : setIdx][absoluteFoldIdx - absoluteOffset],
                    fstrPath);