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C Library Functions  - expcdf (3)

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NAME

expcdf(3f) - [M_datapac:CUMULATIVE_DISTRIBUTION] compute the exponential cumulative distribution function

CONTENTS

Synopsis
Description
Input Arguments
Output Arguments
Examples
Author
Maintainer
License
References

SYNOPSIS

SUBROUTINE EXPCDF(X,Cdf)

       REAL(kind=wp),intent(in) :: X
       REAL(kind=wp),intent(out) :: Cdf

DESCRIPTION

EXPCDF(3f) computes the cumulative distribution function value for the exponential distribution with mean = 1 and standard deviation = 1.

This distribution is defined for all non-negative X, and has the probability density function

      f(x) = exp(-x)

INPUT ARGUMENTS

X	The value at which the cumulative distribution function is to be evaluated. X should be non-negative.

OUTPUT ARGUMENTS

CDF	The cumulative distribution function value.

EXAMPLES

Sample program:

   program demo_expcdf
   use M_datapac, only : expcdf
   implicit none
   ! call expcdf(x,y)
   end program demo_expcdf

Results:

AUTHOR

The original DATAPAC library was written by James Filliben of the Statistical Engineering Division, National Institute of Standards and Technology.

MAINTAINER

John Urban, 2022.05.31

LICENSE

CC0-1.0

REFERENCES

o	Johnson and Kotz, Continuous Univariate Distributions--1, 1970, pages 207-232.

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Nemo Release 3.1

expcdf (3)

February 23, 2025

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