How can i can convert A matrix to the type i want
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For example i have a matrix
1 0 1 1 0
1 1 0 0 1
0 1 0 1 1
1 1 0 0 1
0 1 0 0 1
and i want when i=j that time be zero briefly i want become
0 0 1 1 0
1 0 0 0 1
0 1 0 1 1
1 1 0 0 1
0 1 0 0 0
how can i write code for it If my matrix name A
Accepted Answer
Honglei Chen
on 13 Sep 2012
A(1:size(A,1)+1:end) = 0
More Answers (3)
Andrei Bobrov
on 13 Sep 2012
Edited: Andrei Bobrov
on 13 Sep 2012
I=[1 0 1 1 0
1 1 0 0 1
0 1 0 1 1
1 1 0 0 1
0 1 0 0 1];
I(1:size(I,1)+1:end) = 0;
or
I(eye(size(I))>0) = 0;
1 Comment
Andrei Bobrov
on 13 Sep 2012
if size(I,1) < size(I,2)-2
>> I = ones(4,8)
I =
1 1 1 1 1 1 1 1
1 1 1 1 1 1 1 1
1 1 1 1 1 1 1 1
1 1 1 1 1 1 1 1
>> I1 = I;
I1(1:size(I,1)+1:end) = 0
I1 =
0 1 1 1 1 0 1 1
1 0 1 1 1 1 0 1
1 1 0 1 1 1 1 0
1 1 1 0 1 1 1 1
>> I2 = I;
I2(eye(size(I))>0) = 0
I2 =
0 1 1 1 1 1 1 1
1 0 1 1 1 1 1 1
1 1 0 1 1 1 1 1
1 1 1 0 1 1 1 1
>>
Sean de Wolski
on 13 Sep 2012
A = [1 0 1 1 0
1 1 0 0 1
0 1 0 1 1
1 1 0 0 1
0 1 0 0 1 ]
A(1:(size(A,1)+1):end) = 0
Honglei Chen
on 13 Sep 2012
Edited: Honglei Chen
on 13 Sep 2012
Here is another one
A.*~eye(size(A))
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