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

Latest revision as of 20:08, 21 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 linear distributed pseudo random numbers in the interval -1 ≤ r < 1.
See also: grand, sample, shuffle, fill, init

@@ Line 1: / Line 1: @@
 {{DISPLAYTITLE:{{SUBPAGENAME}}}}
-=====rand=====
+Generation of linear distributed pseudo random numbers in the interval <code>-1 &le; ''r'' < 1</code>.
+----
+;Usage 1: <code>rand</code>
+;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 linear distributed pseudo random numbers in the interval <code>-1 &le; ''r'' < 1</code>.
+;See also: [[../grand|grand]], [[../sample|sample]], [[../shuffle|shuffle]], [[../fill|fill]], [[../init|init]]
-{|
+[[../#Functions|<function list>]]
-|-
-|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)
-|}
-|}