public void Add_AddToVectorCorrectVector()
{
Vector vector = new Vector(new double[] { 1.0, 2.0, 3.0});
Vector vector2 = new Vector(new double[] { 2.0, 3.0, 4.0 });
vector.Add(vector2);
Assert.AreEqual(vector.Values[0], 3.0);
Assert.AreEqual(vector.Values[1], 5.0);
Assert.AreEqual(vector.Values[2], 7.0);
}
public static Vector GetMeanOfVectors(List<Vector> vectors)
{
Vector result = new Vector(vectors[0].values.Length, 0.0);
foreach (Vector item in vectors)
{
result.Add(item);
}
result.Divide((double)vectors.Count);
return result;
}
public static Vector GetYMeanOfSamples(List<Sample> samples)
{
int count = samples.Count;
Vector result = new Vector(Params.inputDataDimension, 0.0);
foreach (Sample sample in samples)
{
result.Add(sample.Y);
}
result.Divide(count);
return result;
}
public static Vector GetXMeanOfSamples(List<Sample> samples)
{
if (samples.Count == 0) throw new InvalidOperationException("impossible to return mean from 0 samples");
int count = samples.Count;
Vector result = new Vector(Params.inputDataDimension, 0.0);
foreach (Sample sample in samples)
{
result.Add(sample.X);
}
result.Divide(count);
return result;
}