replace the elements of a matrix
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Hello,
Consider a 100x1 matrix, called A, that contains random values of "0" and "1".
The number of "1" is 25 and the rest 75 are "0".
Also, consider a matrix 25x1, called B, that contains random values.
How can I replace the "1" of matrix A with the values of matrix B?
The "0" of A would not be influenced.
Thank you.
Best,
Pavlos
采纳的回答
Azzi Abdelmalek
2014-2-13
A(A==1)=B
2 个评论
pavlos
2014-2-13
Azzi Abdelmalek
2014-2-13
This is not true. Look at this example
%exmple
A=zeros(100,1);
A(randperm(100,25))=1
B=rand(25,1)
%----------------------
A(A==1)=B
更多回答（1 个）
Dishant Arora
2014-2-13
A(find(A==1))=B;
2 个评论
Azzi Abdelmalek
2014-2-13
Why to add find when you can do it without it?
Dishant Arora
2014-2-13
yeah,got it
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