how to re order a matrix based on a vector ?

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Niki
Niki 2015-9-16
回答： dpb 2015-9-16
I have a matrix like below
A =
16 2 3 13
5 11 10 8
9 7 6 12
4 14 15 1
each column is a variable for example we have 4 in this example I want to reorder it based on another vector that i have for example I want to reorder it based on the following vector
t = [ 2 1 3 4]
so the output will look like
A =
2 16 3 13
11 5 10 8
7 9 6 12
14 4 15 1
It is important that I sort the matrix using a given vector index

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回答（1 个）

dpb
dpb 2015-9-16
Clearly you haven't tried the obvious...
>> A(:,t)
ans =
2 16 3 13
11 5 10 8
7 9 6 12
14 4 15 1
>>

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