void _CreateMapper(IDataScorerTransform scorer)
{
_mapperBinaryClassification = null;
var schema = scorer.Schema;
int i1, i2, i3;
i1 = SchemaHelper.GetColumnIndex(schema, "PredictedLabel");
i2 = SchemaHelper.GetColumnIndex(schema, "Score");
i3 = SchemaHelper.GetColumnIndex(schema, "Probability");
var map = new ValueMapperFromTransform <TRowValue, PredictionTypeForBinaryClassification>(_env, scorer);
_mapperBinaryClassification = map.GetMapper <TRowValue, PredictionTypeForBinaryClassification>();
_valueMapper = map;
}
void _CreateMapper(IDataScorerTransform scorer, int conc)
{
_mapperBinaryClassification = null;
var schema = scorer.Schema;
int i1, i2, i3;
if (schema.TryGetColumnIndex("PredictedLabel", out i1) && schema.TryGetColumnIndex("Score", out i2) &&
schema.TryGetColumnIndex("Probability", out i3))
{
var map = new ValueMapperFromTransform <TRowValue, PredictionTypeForBinaryClassification>(_env,
scorer, conc: conc);
_mapperBinaryClassification = map.GetMapper <TRowValue, PredictionTypeForBinaryClassification>();
_valueMapper = map;
}
else
{
throw Contracts.Except($"Unable to guess the prediction task from schema '{SchemaHelper.ToString(schema)}'.");
}
}