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replace value in many colone to one value

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alize beemiel
alize beemiel 2020-8-19
编辑： Bruno Luong 2020-8-19
i have matrix witn n line row
mtx = [1 1 0 1;
2 0 1 1;
3 1 1 1;
4 1 1 0;
5 1 1 0 ]; % and so on (n rows )
and i want to have this to join value colone 2 and 3 and 4 in one colone
mtx= [1 101;
2 011;
3 111;
4 110;
5 110];

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回答（2 个）

Bruno Luong
Bruno Luong 2020-8-19
编辑：Bruno Luong 2020-8-19
Single line
mtx*[1 0; 0 100; 0 10; 0 1]
KSSV
KSSV 2020-8-19
编辑：KSSV 2020-8-19
mtx = [1 1 0 1;
2 0 1 1;
3 1 1 1;
4 1 1 0;
5 1 1 0 ];
[m,n] = size(mtx) ;
iwant = zeros(m,2) ;
iwant(:,1) = mtx(:,1) ;
iwant(:,2) = mtx(:,2:end)*[100 10 1]' ;

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