public class FastDirichletMRGParams extends DiMRGParams
MRGParams
,
DirichletMRGParams
Constructor and Description |
---|
FastDirichletMRGParams(double alpha)
Creates the hyperparameter for a Dirichlet random generator which is used
at all positions for the hyperparameter vector of the underlying
Dirichlet distribution.
|
Modifier and Type | Method and Description |
---|---|
int |
getDimension()
Returns the dimension of the hyperparameter vector of the underlying
Dirichlet distribution and therefore the dimension of the generated
random array.
|
double |
getHyperparameter(int i)
Returns the value at position
i of the hyperparameter vector
of the underlying Dirichlet distribution. |
public FastDirichletMRGParams(double alpha) throws IllegalArgumentException
alpha
- the hyperparameter for all positions of the hyperparameter
vectorIllegalArgumentException
- if the value for alpha
is chosen incorrectly
(negative or 0), the parameter has to be positivepublic int getDimension()
DiMRGParams
getDimension
in class DiMRGParams
public double getHyperparameter(int i)
DiMRGParams
i
of the hyperparameter vector
of the underlying Dirichlet distribution.getHyperparameter
in class DiMRGParams
i
- the position of the hyperparameter vectori
of the hyperparameter vector
of the underlying Dirichlet distribution