public static Vector GetMeanOfVectorsMDF(List <Vector> vectors)
{
Vector result = new Vector(vectors[0].values.Length, vectors[0].valuesMDF.Length, 0.0);
foreach (Vector item in vectors)
{
result.AddMDF(item);
}
result.DivideMDF((double)vectors.Count);
return(result);
}
public static Vector GetVarianceOfVectors(List <Vector> vectors, Vector mean)
{
Vector result = new Vector(vectors[0].values.Length, vectors[0].valuesMDF.Length, 0.0);
foreach (var item in vectors)
{
Vector diff = new Vector(item.valuesMDF.ToArray());
diff.SubtractMDF(mean);
diff.MultiplyMDF(diff);
result.AddMDF(diff);
}
result.DivideMDF(vectors.Count - 1);
return(result);
}
public static Vector GetVarianceOfVectors(List<Vector> vectors, Vector mean)
{
Vector result = new Vector(vectors[0].values.Length, vectors[0].valuesMDF.Length, 0.0);
foreach (var item in vectors)
{
Vector diff = new Vector(item.valuesMDF.ToArray());
diff.SubtractMDF(mean);
diff.MultiplyMDF(diff);
result.AddMDF(diff);
}
result.DivideMDF(vectors.Count - 1);
return result;
}
public static Vector GetMeanOfVectorsMDF(List<Vector> vectors)
{
Vector result = new Vector(vectors[0].values.Length, vectors[0].valuesMDF.Length, 0.0);
foreach (Vector item in vectors)
{
result.AddMDF(item);
}
result.DivideMDF((double)vectors.Count);
return result;
}