How to replace and interchange values?

Question

Triveni 2016-2-27

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此问题的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/270316-how-to-replace-and-interchange-values

评论： the cyclist 2016-2-27

x= [15 30 45 60 -45 -30 0 90 15 30 45 60 -45 -30 0 90 15 45 60 -45 -30 0];
 a = unique(x);

%Last column of x replaced by "a" i.e [ -45 -30 0 15 30 45 60 90]

 y= [15 30 45 60 -45 -30 0 90 15 30 45 60 -45 -30 0 90 15 45 60 -45 -30 -45;
30 45 60 -45 -30 0 90 15 30 45 60 -45 -30 0 90 15 45 60 -45 -30 -30;
30 45 60 -45 -30 0 90 15 30 45 60 -45 -30 0 90 15 45 60 -45 -30 0;
30 45 60 -45 -30 0 90 15 30 45 60 -45 -30 0 90 15 45 60 -45 -30 15;
30 45 60 -45 -30 0 90 15 30 45 60 -45 -30 0 90 15 45 60 -45 -30 30;
30 45 60 -45 -30 0 90 15 30 45 60 -45 -30 0 90 15 45 60 -45 -30 45;
30 45 60 -45 -30 0 90 15 30 45 60 -45 -30 0 90 15 45 60 -45 -30 60;
30 45 60 -45 -30 0 90 15 30 45 60 -45 -30 0 90 15 45 60 -45 -30 90;];
 value = [15 30 45 60 -45 -30 0 90 15 30 45 60 -45 -30 0 90 15 45 60 -45 -30 -45;
30 45 60 -45 -30 0 90 15 30 45 60 -45 -30 0 90 15 45 60 -45 -30 -30;
                                                                              %row of initial guess "x" should be deleted.
30 45 60 -45 -30 0 90 15 30 45 60 -45 -30 0 90 15 45 60 -45 -30 15;
30 45 60 -45 -30 0 90 15 30 45 60 -45 -30 0 90 15 45 60 -45 -30 30;
30 45 60 -45 -30 0 90 15 30 45 60 -45 -30 0 90 15 45 60 -45 -30 45;
30 45 60 -45 -30 0 90 15 30 45 60 -45 -30 0 90 15 45 60 -45 -30 60;
30 45 60 -45 -30 0 90 15 30 45 60 -45 -30 0 90 15 45 60 -45 -30 90;];

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Answer 1

the cyclist 2016-2-27

1
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此回答的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/270316-how-to-replace-and-interchange-values#answer_211426

编辑：the cyclist 2016-2-27

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If I understand your question correctly, here is one way:

x= [15 30 45 60 -45 -30 0 90 15 30 45 60 -45 -30 0 90 15 45 60 -45 -30 0];
a = unique(x);
y = repmat(x,numel(a),1);
y(:,end) = a';
value = y;
rowToRemove = find(x(end)==a);
value(rowToRemove,:) = [];