public void CreateInstance_AssertBasicState()
{
var data = TestData.CreateQueryablePirates();
var pipeline = new FeatureProcessingPipeline<TestData.Pirate>(data);
Assert.That(pipeline.Data, Is.SameAs(data));
Assert.That(pipeline.FeatureExtractor, Is.Not.Null);
}
public void CreateInstance_ExtractVectors_ReturnsValidData()
{
var data = TestData.CreateQueryablePirates();
var pipeline = new FeatureProcessingPipeline<TestData.Pirate>(data);
var featureData = pipeline.ExtractVectors().ToList();
Assert.That(featureData.Count, Is.EqualTo(data.Count()));
Assert.That(featureData[0][0], Is.EqualTo((double)data.First().Age / data.Max(x => x.Age)));
}
public void CreateInstance_FilterFeaturesByProperty_ExtractVectors_ReturnsValidData()
{
var data = TestData.CreateQueryablePirates();
var pipeline = new FeatureProcessingPipeline<TestData.Pirate>(data)
.FilterFeaturesByProperty(p => p
.Select(x => x.Age)
.Select(x => x.Gold));
Assert.That(pipeline.FeatureExtractor.FeatureMetadata.Count(), Is.EqualTo(2));
Assert.That(pipeline.FeatureExtractor.FeatureMetadata.Any(f => f.Label == "Age"));
Assert.That(pipeline.FeatureExtractor.FeatureMetadata.Any(f => f.Label == "Gold"));
}
public void CreateInstance_FilterFeaturesAndPreprocess_ExtractVectors_ReturnsValidData()
{
var data = TestData.CreateQueryablePirates();
var pipeline = new FeatureProcessingPipeline<TestData.Pirate>(data)
.FilterFeatures(x => x.Label == "Age")
.PreprocessWith(m =>
{
return new double[] { m.Sum() * 7 };
});
var featureData = pipeline.ExtractVectors().ToList();
Assert.That(featureData.Count, Is.EqualTo(data.Count()));
Assert.That(featureData[0].Single(), Is.EqualTo((double)data.First().Age / data.Max(x => x.Age) * 7));
}
