How to find a maximum number not considered minus sign?

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Jothi
Jothi 2014-7-17
评论： Bruno Luong 2021-3-28
Sir,
I want find the maximum number in the given array.
But, I am not considered negative sign.
for example, a=[4, 3, -8],
output is = -8. Because 8 is the maximum number.
how I get this output.
thank you.

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采纳的回答

Andrei Bobrov
Andrei Bobrov 2014-7-17
a = [4, 3, -8];
[~,ii] = max(abs(a));
out = a(ii);

更多回答（1 个）

Matz Johansson Bergström
It sounds like you want to find the max absolute value of a vector. This can be accomplished simply by taking the absolute value and remember the index to that value and picking it out:
a = [1,4,5,-8,3];
[val, ind] = max(abs(a));
a(ind)

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