compare elements in rows of a matrix
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Hi,
I have the following matrix:
a=[1 2 3 9; 2 2 3 1; 3 3 3 3]
is there a function that compares the elements of every row?
Something that tells me if they are all different or all the same.
I would like to get
out=[1 0 0]
or
out=[0 0 1]
thanks,
michele
采纳的回答
Walter Roberson
2011-11-28
One way:
all(diff(a,1,2)==0,2)
2 个评论
Andrei Bobrov
2011-11-29
Hi Walter! Small typo, should be:
all(diff(a,1,2)==0,2)
Walter Roberson
2011-11-29
Thanks for catching that -- I didn't know that. I have edited to fix.
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