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Random Element

28 Dec 2004 (Updated 25 Apr 2005)

Returns elements randomly selected from any matrix.

File Information

Description

RANDELEMENT(ARRAY,N) returns a row of N elements, selected at random (and with replacement) from ARRAY.

[There probably is some toolbox function that does something very similar.]

EXAMPLES:

randelement([0:9],5)
may return [4 8 8 5 2]

randelement({'a' 'b' 'c' 'd' 'e' 'f'},2)
may return {'f' 'd'}

MATLAB release

MATLAB 7.0.1 (R14SP1)

Tags for This File
Everyone's Tags	element, matrices, matrix manipulation, rand, random, utilities
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Comments and Ratings (4)
12 Aug 2005	Sameer Aidoor
31 Oct 2006	abhay krishna	hi there very useful,still searching for the tool box fundtion similiar to randelement,also for my purpose i am trying to reverse engineer original matrix after change in these random elements.
11 Feb 2009	Adam Chapman	Nice and simple, does the job perfectly. Thanks!
13 Jan 2011	Jennifer	randsample(population,k) in the Statistics Toolbox does this WITHOUT replacement.

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Updates
20 Apr 2005	Fixed error in Description and Comments.
25 Apr 2005	Made minor update to description and comments.