private Problem LoadData(bool withScaling = false) { var file = Path.Combine(TestContext.CurrentContext.TestDirectory, @".\Data\data.arff"); var arff = ArffDataSet.Load <PositivityType>(file); IProblemFactory factory = new ProblemFactory(arff); if (withScaling) { factory = factory.WithRangeScaling(); } return(factory.Construct(arff).GetProblem()); }