public void TestDistributionShapeTestHelper()
{
DistributionShape shape = DistributionShape.CreateMinMax(2, -1.0, +1.0);
shape.Push(-1.5); // underflow
shape.Push(-1.0); // 0
shape.Push(-0.5); // 0
shape.Push(0.0); // 1
shape.Push(0.5); // 1
shape.Push(1.0); // overflow
shape.Push(1.5); // overflow
Assert.AreEqual(1, shape.Underflow, "underflow");
Assert.AreEqual(2, shape.Overflow, "overflow");
Assert.AreEqual(2, shape[0], "0");
Assert.AreEqual(2, shape[1], "1");
}
private void TestContinuousDistributionShape(
ContinuousDistribution distribution,
double min, double max,
double[] expectedShape, double expectedUnderflow, double expectedOverflow,
int avgSamplesPerBucket, double absoluteAccuracy, string message)
{
DistributionShape shape = DistributionShape.CreateMinMax(expectedShape.Length, min, max);
int sampleCount = expectedShape.Length * avgSamplesPerBucket;
for (int i = 0; i < sampleCount; i++)
{
shape.Push(distribution.NextDouble());
}
double scale = 1.0 / (avgSamplesPerBucket * expectedShape.Length);
Assert.AreEqual(expectedUnderflow, shape.Underflow * scale, absoluteAccuracy, message + " Underflow");
Assert.AreEqual(expectedOverflow, shape.Overflow * scale, absoluteAccuracy, message + " Overflow");
for (int i = 0; i < expectedShape.Length; i++)
{
Assert.AreEqual(expectedShape[i], shape[i] * scale, absoluteAccuracy, message + " Bucket " + i.ToString());
}
}
