public ValueMapperExample(string modelName, string features) { _env = EnvHelper.NewTestEnvironment(); _predictor = _env.LoadPredictorOrNull(File.OpenRead(modelName)); var inputs = new Input[0]; var view = _env.CreateStreamingDataView <Input>(inputs); _transforms = ComponentCreation.LoadTransforms(_env, File.OpenRead(modelName), view); var data = _env.CreateExamples(_transforms, features); var scorer = _env.CreateDefaultScorer(data, _predictor); _valueMapper = new ValueMapperFromTransformFloat <VBuffer <float> >(_env, scorer, "Features", "Probability"); _mapper = _valueMapper.GetMapper <VBuffer <float>, float>(); }