MATLAB: Help changing 0 to 1 based on 2 different criteria

Question

Hello

I'm very new with MATLAB so this may be a real easy question but i've tried a few things and come up with nothing.

using:

A = zeros(size(data));

A(B > C) = 1;

A(B < C) = -1;

All works okay, however I want to put in a second critiera,so bascially like this:

A = zeros(size(data));

A((B > C) & (D < E)) = 1;

A((B < C) & (D > E)) = -1;

However, this doesn't work : (

I'm guessing I could do it with an IF statement, but would really like to know how to just develop this method.

Thanks for you help

Answer 1

A(B>C&D<E)=1;
A(B<C&D>E)=-1;