How to add a number to the negative values in a vector?

Dear All,

I have a vector [A] which includes positive and negative values A = [1 4 5 2 -3 4 5 7 -6 -6]. I want to change those negative values by adding -180 to them, so my new vector will be like this

A = [1 4 5 2 -183 4 5 7 -186 -186].

Any idea how find that?

So far I tried this but not working

for i = 1:10
    for j = 1:1
        if A(i,j)<=0
            A(i,j) = A + -180;
        end
    end
end

Answer 1

[Andrei Bobrov]

A = [1 4 5 2 -3 4 5 7 -6 -6];

t = A < 0;
A(t) = A(t) - 180;

ADD

May be use the following:

A = mod(A,180);

I think that '180' it 'pi' in this case.

[Meshooo]

It works! thank you very much..

[Lyndon Nawanao]

Hi Andrei. Thank you for this! I would like to ask what syntax is this in matlab? Apparently, the if statements (if A<0 A=A-180)did not work but this one did. Thanks in advance.