Other Library Functions

random.exponential

function

Library: Random number utilities (OMRANDOM)
Import : omrandom.xmd

Returns: Random numbers based on the exponential distribution.


Declaration 
define external integer function random.exponential
  average value integer lambda


Purpose

Use this function to generate random numbers based on the exponential distribution. Over a large number of trials, the average over all of the generated random numbers will tend towards the argument lambda.

Example:

This program generates 1000 random numbers with an exponential distribution and an average value of 20. 

  
  import "omrandom.xmd" prefixed by random.
  
  process
       repeat for integer i from 1 to 1000
          output "d" % i || ": "
              || "d" % random.exponential average 20
              || "%n"
       again

Other Library Functions