change the order of array

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NA
NA 2018-10-22
评论： Bruno Luong 2018-10-22
I have M=[1,2 ;1,5; 2,4;2,5;4,5; 4,9;5,6;6,11;9,10;10,11] I want to change the order of numbers I want this answer N=[1,2;1,4;2,3;2,4;3,4;3,6;4,5;5,8;6,7;7,8]

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Bruno Luong
Bruno Luong 2018-10-22
[~,N] = ismember(M,unique(M(:)))
  2 个评论
NA
NA 2018-10-22
is there any possibilities to save this order? for example 5 changes to 4, 8 changes to 11.
Bruno Luong
Bruno Luong 2018-10-22
I guess you mean 11 changes to 8 (not the opposite).
u = unique(M(:));
map = [u,(1:length(u)).']

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