how can i negative all rows in a matrix?just rows
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how can i negative all rows in a matrix?just rows
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John D'Errico
am 7 Mai 2016
One can only presume that the OP is asking how to negate an array. But then why would that negate only the rows, and not the columns?
Jan
am 7 Mai 2016
@fariba amini: Please post a small example which explains, what "negative rows" means and how if differs from negate the elements.
Antworten (1)
Andrei Bobrov
am 7 Mai 2016
Let a - your array
a = [-4 0 1 -2 -3
-3 -5 -5 -2 -1
3 2 -3 1 0
-1 3 -5 2 -4
2 1 -5 -4 -4
-4 -1 -2 -1 -1
-2 1 1 -1 3
3 -2 -3 0 -2
2 0 3 1 0
3 -4 -5 1 -3];
out = a(all(sign(a) == -1,2),:);
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