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Exponential Distribution

This class produces an exponential distribution with a user-provided rate parameter, or lambda. Optionally, a random number generator can also be provided for sampling. If a random number generator is not provided, Mersenne will be used.

Constructor​

ExponentialDistribution(const double mn);
ExponentialDistribution(const double mn, SST::RNG::Random* baseRNG);

Parameters​

  • mn (double) The lambda value to use in generating the distribution
  • baseRNG (SST::RNG::Random*) A random number generator for sampling the distribution

getNextDouble​

double getNextDouble();

Return the next double in the distribution.

Parameters​

  • returns (double) The next double in the distribution

getLambda​

double getMean();

Return the lambda with which the distribution was created.

Parameters​

  • returns (double) The distribution's lambda value

Example​

SST::RNG::ExponentialDistribution* dist = new SST::RNG::ExponentialDistribution(1.5);

double next;
next = dist->getNextDouble();
#include <sst/core/rng/expon.h>