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

Revision as of 15:29, 8 April 2011

Generation of linear distributed pseudo random numbers in the interval -1 <= r < 1.

Usage 2

rand(seed {, nr {, nc}})

seed: if this value is not equal 0, it is used to initialize the random number generator
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 pseudo random number.

@@ Line 1: / Line 1: @@
 {{DISPLAYTITLE:{{SUBPAGENAME}}}}
-=====rand=====
+Generation of linear distributed pseudo random numbers in the interval <code>-1 <= ''r'' < 1</code>.
+----
+;Usage 1: '''rand'''
+;Result 1: Returns a pseudo random number.
+----
+;Usage 2: '''<code>rand(''seed'' {, ''nr'' {, ''nc''}})</code>'''
+:;''seed'': if this value is not equal ''0'', it is used to initialize the random number generator
+:;''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 pseudo random number.
-{|
+;See also: [[Programmer_Guide/Command_Reference/EVAL/grand|grand]], [[Programmer_Guide/Command_Reference/EVAL/sample|sample]], [[Programmer_Guide/Command_Reference/EVAL/shuffle|shuffle]]
-|-
-|rand
-|A linear random number generator in the interval [<nowiki>-</nowiki>1,1[
-|-
-|rand(seed)
-|Like rand, except if seed is >0, it is used to initialise the generator.
-|-
-|rand(seed, <var>nr</var>, <var>nc</var>)
-|Create a vector or a matrix with a linear random number generator with the interval [<nowiki>-</nowiki>1,1[.{|
-|-
-|<var>seed</var>
-|the start value (if > 0)
-|-
-|nr
-|the number of rows or elements (>=1; def.=1)
-|-
-|nc
-|the number of columns (>=1; def.=1)
-|}
+[[Programmer_Guide/Command_Reference/EVAL#Functions|<function list>]]
-|}