Change order in an Array using a second array

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alessandro montaghi 2018-12-18

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https://ww2.mathworks.cn/matlabcentral/answers/436363-change-order-in-an-array-using-a-second-array

评论： alessandro montaghi 2018-12-18

I am new in Matlab (sorry)

I have to arrays a= [10, 20, 30, 40, 50] and p = [5, 3, 1, 2, 4]. I am looking a method to change the order of a in function of p (this array is an index vector). For example

newa = [50, 30, 10, 20, 40]

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Stephen23 2018-12-18

Very basic MATLAB concepts, like how to use indexing, are explained in the introductory tutorials:

https://www.mathworks.com/help/matlab/getting-started-with-matlab.html

Rather than spending time registering on this forum, writing a question, waiting for some random stranger to help you with very basic MATLAB concepts... you can actually learn lots of important and useful concepts yourself simply by doing those tutorials.

alessandro montaghi 2018-12-18