public interface MultivariateRealDistribution
| Modifier and Type | Method and Description |
|---|---|
double |
density(double[] x)
Returns the probability density function (PDF) of this distribution
evaluated at the specified point
x. |
int |
getDimension()
Gets the number of random variables of the distribution.
|
void |
reseedRandomGenerator(long seed)
Reseeds the random generator used to generate samples.
|
double[] |
sample()
Generates a random value vector sampled from this distribution.
|
double[][] |
sample(int sampleSize)
Generates a list of a random value vectors from the distribution.
|
double density(double[] x)
x. In general, the PDF is the
derivative of the cumulative distribution function. If the derivative
does not exist at x, then an appropriate replacement should be
returned, e.g. Double.POSITIVE_INFINITY, Double.NaN, or
the limit inferior or limit superior of the difference quotient.x - Point at which the PDF is evaluated.x.void reseedRandomGenerator(long seed)
seed - Seed with which to initialize the random number generator.int getDimension()
sample
method.double[] sample()
double[][] sample(int sampleSize)
throws NotStrictlyPositiveException
sampleSize - the number of random vectors to generate.NotStrictlyPositiveException - if sampleSize is not positive.sample()Copyright © 2003–2016 The Apache Software Foundation. All rights reserved.