Random data selection from a matrix

2014 3 8
1 个回答
回答已采纳
更新时间：2014 3 8
7 次查看（30 天）

 采纳的回答

Image Analyst
Image Analyst 2014-3-8

0 个投票

Try this:
Z=[43;-57;98;23;-13;243;-98;112;325;560]
elementsToExtract = randperm(numel(Z), 5)
z5 = Z(elementsToExtract)

3 个评论
显示 1更早的评论 隐藏 1更早的评论

Tinkul
Tinkul 2014-3-8
Sorry sir,i gives error.In the command window it shows the following error:
??? Error using ==> randperm Too many input arguments.
Error in ==> Untitled at 5 elementsToExtract = randperm(numel(Z), 5);
Image Analyst
Image Analyst 2014-3-8
You must have a really old version of MATLAB. What version/release do you have? You can extract the 5 yourself:
Z=[43;-57;98;23;-13;243;-98;112;325;560]
elementsToExtract = randperm(numel(Z))
z5 = Z(elementsToExtract(1:5))
Tinkul
Tinkul 2014-3-8
Thanx sir. Now its working...I have matlab 7.8.0(R2009a) version...

请先登录，再进行评论。

更多回答（0 个）

类别

在 帮助中心 和 File Exchange 中查找有关 Resizing and Reshaping Matrices 的更多信息

标签

Community Treasure Hunt

Find the treasures in MATLAB Central and discover how the community can help you!

Start Hunting!

Translated by