Programmer Guide/Command Reference/EVAL/grand: Difference between revisions

Latest revision as of 10:45, 21 April 2011

Generation of gaussian distributed pseudo random numbers.

Usage

grand(m {, s , seed , nr , nc})

m: mean value of the gaussian distribution
s: standard deviation of the gaussian distibution (default=1)
seed: if this value is not equal 0, it is used to initialize the random number generator (default=0)
nr: number of rows of the result (default=1)
nc: number of columns of the result (default=1)

Result 2: A numeric object r with nr rows and nc columns. Each element of r is set to a gaussian distibuted pseudo random number with mean m and standard deviation s.
See also: rand, sample, shuffle

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 {{DISPLAYTITLE:{{SUBPAGENAME}}}}
-=====grand=====
+Generation of gaussian distributed pseudo random numbers.
+;Usage: <code>grand(''m'' {, ''s'' , ''seed'' , ''nr'' , ''nc''})</code>
+:;''m'': mean value of the gaussian distribution
+:;''s'': standard deviation of the gaussian distibution (default=1)
+:;''seed'': if this value is not equal ''0'', it is used to initialize the random number generator (default=0)
+:;''nr'': number of rows of the result (default=1)
+:;''nc'': number of columns of the result (default=1)
+;Result 2: A numeric object ''r'' with ''nr'' rows and ''nc'' columns. Each element of ''r'' is set to a gaussian distibuted pseudo random number with mean ''m'' and standard deviation ''s''.
+;See also: [[../rand|rand]], [[../sample|sample]], [[../shuffle|shuffle]]
-{|
+[[../#Functions|<function list>]]
-|-
-|grand(m, <var>s</var>)
-|Create a normal distributed random number with the mean m and spread <var>s</var>.
-|-
-|grand(m, <var>s</var>, <var>seed</var>)
-|Like grand, except if seed is greater than zero, it is used as the start value to initialise the generator.
-|-
-|grand(m, <var>s</var>, <var>seed</var>, <var>nr</var>, <var>nc</var>)
-|Create a vector or a matrix of normal distributed random numbers with a mean m and a spread <var>s</var>.{|
-|-
-|<var>seed</var>
-|the start value (if seed > 0)
-|-
-|nr
-|the number of rows or elements (>=1; def.=1)
-|-
-|nc
-|the number of columns (>=1; def.=1)
-|}
-|}