how to delete column with one number only

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nadia nadi 2016-4-21

评论： nadia nadi 2016-4-25

Dear All,

I need to delete the columns with only one element from this matrix,

A   =[1     1     1     0     0
   1     0     0     0
   0     1     0     0
   0     0     1     1
   0     0     0     1
   0     1     0     0];

I used some command find with loop but it is not correct, is there any efficient idea.

thanks in advance.

Nadia,

Azzi Abdelmalek 2016-4-21

编辑：Azzi Abdelmalek 2016-4-21

A(:,sum(A)==1)=[]

nadia nadi 2016-4-25

Thank you very much Azzi.

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