Sorting group position from 1

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Abhineet Prakash
Abhineet Prakash 2022-11-28
回答： Jonas 2022-11-28
I have a group number of array
1) [2 3 2 1] I want [1 2 1 3]
2) [3 3 1 2] I want [1 1 2 3]

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Jonas
Jonas 2022-11-28
Ran in:
i think you are searching for this:
[~,~,c]=unique([2 3 2 1],'stable')
c = 4×1
1 2 1 3
[~,~,c]=unique([3 3 1 2],'stable')
c = 4×1
1 1 2 3

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