MATLAB: How to check whether the strictly positive elements of each row of a matrix are equal

matricesmatrixmatrix arraymatrix manipulation

How can I check whether the strictly positive elements of each row of a matrix are equal? E.g. if

A=[0 1 1 2; 0 1 0 1; 3 0 3 0]

I want

B=[0;1;1]

    arrayfun( @(jj) (length(unique(A(jj,(A(jj,:)>0)))) == 1),(1:size(A,1)) )

returns

    ans =
         0     1     1

Edit

out=arrayfun(@(x) min([ 0 A(find(A(:,x)<0,1),x)]),1:size(A,2))

Hi,

You need to re-inizialize the temporary matrix DBIBC for each iteration, if not the first iteration makes 2-5 rows 0 and thats all....

BIBC = [1 1 1 1 1;0 1 1 1 1;0 0 1 1 0;0 0 0 1 0;0 0 0 0 1] ;

N=length(BIBC);

for i=1:N

DBIBC = BIBC;

rw = find(DBIBC(:,i)==0)

DBIBC(rw,:)= 0

DBIBC(i)

B{i} = DBIBC;

end