Library: Utilities (OMUTIL) legacy library Include: omutil.xin

Return type: Integer Returns:  Random numbers based on the exponential distribution.

Declaration

  define external integer function UTIL_ExpRand (value integer lambda)

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.

  include "omutil.xin"

  process
       local integer lambda initial {20} ; average value

       repeat for integer i from 1 to 1000
          output "d" % i || ": "
              || "d" % UTIL_ExpRand(lambda) || "%n"
       again

Other Library Functions    UTIL_Env    UTIL_ExpRand    UTIL_GetEnv    UTIL_GetMilliSecondTimer    UTIL_GetProcessId    UTIL_IsVersionCompatible    UTIL_LibraryVersion    UTIL_Rand    UTIL_Sleep    UTIL_SortIntegersByKey    UTIL_SortIntegersByValue    UTIL_SortStreamsByKey    UTIL_SortStreamsByValue    UTIL_SortSwitchesByKey    UTIL_Srand    UTIL_UniformRand

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