Function ParseEvalResult

catboost/app/mode_roc.cpp:45–71

};

static void ParseEvalResult(const TString& evalResultPath, TVector<double>* approxes, TVector<float>* labels) {
    approxes->clear();
    labels->clear();
    THolder<ILineDataReader> reader = GetLineDataReader(TPathWithScheme(evalResultPath));

    TString header;
    reader->ReadLine(&header);
    TVector<TString> headerTokens = StringSplitter(header).Split('\t');
    THashMap<TString, ui32> columnHeaders;
    for (ui32 i = 0; i < headerTokens.size(); ++i) {
        columnHeaders[headerTokens[i]] = i;
    }
    CB_ENSURE(columnHeaders.contains("Label") && columnHeaders.contains("RawFormulaVal"), "Incorrect EvalResult format.");
    const ui32 approxColumnIndex = columnHeaders.at("RawFormulaVal");
    const ui32 labelColumnIndex = columnHeaders.at("Label");

    TString line;
    while (reader->ReadLine(&line)) {
        TVector<TString> tokens = StringSplitter(line).Split('\t');
        if (tokens.empty()) {
            continue;
        }
        CB_ENSURE(tokens.size() > Max(approxColumnIndex, labelColumnIndex));
        approxes->push_back(FromString<double>(tokens[approxColumnIndex]));
        labels->push_back(FromString<float>(tokens[labelColumnIndex]));
    }
}

int mode_roc(int argc, const char* argv[]) {
    TRocParams params;