How to replace and interchange values?

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Triveni
Triveni 2016-2-27
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;
15 30 45 60 -45 -30 0 90 15 30 45 60 -45 -30 0 90 15 45 60 -45 -30 -30;
15 30 45 60 -45 -30 0 90 15 30 45 60 -45 -30 0 90 15 45 60 -45 -30 0;
15 30 45 60 -45 -30 0 90 15 30 45 60 -45 -30 0 90 15 45 60 -45 -30 15;
15 30 45 60 -45 -30 0 90 15 30 45 60 -45 -30 0 90 15 45 60 -45 -30 30;
15 30 45 60 -45 -30 0 90 15 30 45 60 -45 -30 0 90 15 45 60 -45 -30 45;
15 30 45 60 -45 -30 0 90 15 30 45 60 -45 -30 0 90 15 45 60 -45 -30 60;
15 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;
15 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.
15 30 45 60 -45 -30 0 90 15 30 45 60 -45 -30 0 90 15 45 60 -45 -30 15;
15 30 45 60 -45 -30 0 90 15 30 45 60 -45 -30 0 90 15 45 60 -45 -30 30;
15 30 45 60 -45 -30 0 90 15 30 45 60 -45 -30 0 90 15 45 60 -45 -30 45;
15 30 45 60 -45 -30 0 90 15 30 45 60 -45 -30 0 90 15 45 60 -45 -30 60;
15 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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the cyclist
the cyclist 2016-2-27
编辑：the cyclist 2016-2-27
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,:) = [];
  2 个评论
Triveni
Triveni 2016-2-27
Thanks....and please tell me to delete x from this too. i have to delete row matching with x? your program calculating "y". and i need value.
the cyclist
the cyclist 2016-2-27
I edited my answer to give you y and value as you stated.

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