|
Colt 1.2.0 | ||||||||||
| PREV CLASS NEXT CLASS | FRAMES NO FRAMES | ||||||||||
| SUMMARY: NESTED | FIELD | CONSTR | METHOD | DETAIL: FIELD | CONSTR | METHOD | ||||||||||
java.lang.Objectcern.colt.PersistentObject
cern.jet.random.AbstractDistribution
cern.jet.random.AbstractContinousDistribution
cern.jet.random.Exponential
Exponential Distribution (aka Negative Exponential Distribution); See the math definition animated definition.
p(x) = lambda*exp(-x*lambda) for x >= 0, lambda > 0.
Instance methods operate on a user supplied uniform random number generator; they are unsynchronized.
| Field Summary |
| Fields inherited from class cern.colt.PersistentObject |
serialVersionUID |
| Constructor Summary | |
Exponential(double lambda,
RandomEngine randomGenerator)
Constructs a Negative Exponential distribution. |
|
| Method Summary | |
double |
cdf(double x)
Returns the cumulative distribution function. |
double |
nextDouble()
Returns a random number from the distribution. |
double |
nextDouble(double lambda)
Returns a random number from the distribution; bypasses the internal state. |
double |
pdf(double x)
Returns the probability distribution function. |
void |
setState(double lambda)
Sets the mean. |
static double |
staticNextDouble(double lambda)
Returns a random number from the distribution with the given lambda. |
String |
toString()
Returns a String representation of the receiver. |
| Methods inherited from class cern.jet.random.AbstractDistribution |
apply, apply, clone, makeDefaultGenerator, nextInt |
| Methods inherited from class java.lang.Object |
equals, getClass, hashCode, notify, notifyAll, wait, wait, wait |
| Constructor Detail |
public Exponential(double lambda,
RandomEngine randomGenerator)
| Method Detail |
public double cdf(double x)
public double nextDouble()
nextDouble in class AbstractDistributionpublic double nextDouble(double lambda)
public double pdf(double x)
public void setState(double lambda)
public static double staticNextDouble(double lambda)
public String toString()
|
Colt 1.2.0 | ||||||||||
| PREV CLASS NEXT CLASS | FRAMES NO FRAMES | ||||||||||
| SUMMARY: NESTED | FIELD | CONSTR | METHOD | DETAIL: FIELD | CONSTR | METHOD | ||||||||||