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changeset 17420:6643f21e27f3

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doc: Document the form of the geometric distribution being used (II) in geo* functions. * scripts/statistics/distributions/geocdf.m, scripts/statistics/distributions/geoinv.m, scripts/statistics/distributions/geopdf.m, scripts/statistics/distributions/geornd.m: Document the form of the geometric distribution being used (II) in geo* functions.
author Rik <rik@octave.org>
date Tue, 10 Sep 2013 07:28:20 -0700
parents 3feff4d08953
children 3cf4250cc67e
files scripts/statistics/distributions/geocdf.m scripts/statistics/distributions/geoinv.m scripts/statistics/distributions/geopdf.m scripts/statistics/distributions/geornd.m
diffstat 4 files changed, 12 insertions(+), 0 deletions(-) [+]
line wrap: on
line diff
--- a/scripts/statistics/distributions/geocdf.m
+++ b/scripts/statistics/distributions/geocdf.m
@@ -21,6 +21,9 @@
 ## @deftypefn {Function File} {} geocdf (@var{x}, @var{p})
 ## For each element of @var{x}, compute the cumulative distribution function
 ## (CDF) at @var{x} of the geometric distribution with parameter @var{p}.
+##
+## The geometric distribution models the number of failures (@var{x}-1) of a
+## Bernoulli trial with probability @var{p} before the first success (@var{x}).
 ## @end deftypefn
 
 ## Author: KH <Kurt.Hornik@wu-wien.ac.at>
--- a/scripts/statistics/distributions/geoinv.m
+++ b/scripts/statistics/distributions/geoinv.m
@@ -21,6 +21,9 @@
 ## @deftypefn {Function File} {} geoinv (@var{x}, @var{p})
 ## For each element of @var{x}, compute the quantile (the inverse of
 ## the CDF) at @var{x} of the geometric distribution with parameter @var{p}.
+##
+## The geometric distribution models the number of failures (@var{x}-1) of a
+## Bernoulli trial with probability @var{p} before the first success (@var{x}).
 ## @end deftypefn
 
 ## Author: KH <Kurt.Hornik@wu-wien.ac.at>
--- a/scripts/statistics/distributions/geopdf.m
+++ b/scripts/statistics/distributions/geopdf.m
@@ -21,6 +21,9 @@
 ## @deftypefn {Function File} {} geopdf (@var{x}, @var{p})
 ## For each element of @var{x}, compute the probability density function
 ## (PDF) at @var{x} of the geometric distribution with parameter @var{p}.
+##
+## The geometric distribution models the number of failures (@var{x}-1) of a
+## Bernoulli trial with probability @var{p} before the first success (@var{x}).
 ## @end deftypefn
 
 ## Author: KH <Kurt.Hornik@wu-wien.ac.at>
--- a/scripts/statistics/distributions/geornd.m
+++ b/scripts/statistics/distributions/geornd.m
@@ -33,6 +33,9 @@
 ## 
 ## If no size arguments are given then the result matrix is the size of
 ## @var{p}.
+##
+## The geometric distribution models the number of failures (@var{x}-1) of a
+## Bernoulli trial with probability @var{p} before the first success (@var{x}).
 ## @end deftypefn
 
 ## Author: KH <Kurt.Hornik@wu-wien.ac.at>