determine all cells are non-zero within a matrix

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I am trying to determine if all of the numbers in "x" is non-zero values:
x = [1 1 0]
% 1:
if x ~= [0 0 0]
disp('x is not zeros')
end
% 2:
if all(x ~= 0)
disp('x is not zeros')
end
but the output is saying the x is zeros.
what mistake did I make?
  4 个评论
Adam
Adam 2019-7-3
And why isn't this the expected answer? You are testing if all elements of Pref_Color are not equal to 0. Clearly this is false because the final element is 0 therefore it drops into your else block and reports 'no'.
Peng Zhao
Peng Zhao 2019-7-3
Thanks for pointing out.
it should be
if ~all(Pref_Color == 0)
and now it is doing what I expected.

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采纳的回答

Matt J
Matt J 2019-7-3
Your second if statement is correct, and I get the correct output (none).

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