Using "or" operands when indexing a matrix

Hi all,

I am trying to speed up a for loop that I have by using indexing instead of "if" statements. To that end I have the following line of code:

 idx = find ((MouseData(k).BehaviourData(:,4) == NovMouse) || (MouseData(k).BehaviourData(:,5) == NovMouse) || (MouseData(k).BehaviourData(:,6) == NovMouse)); 

However when I run it, I get the following error:

Operands to the || and && operators must be convertible to logical scalar values.

It is worthy of noting that NovMouse is a scalar value, as is MouseData(k).BehaviourData(:,4).

Alternatively, I would appreciate any alternatives to this code that wouldn't take too long run.

Answer 1

[Ameer Hamza]

If operands are arrays then use single (|) instead of (||)

idx = find ((MouseData(k).BehaviourData(:,4) == NovMouse) | (MouseData(k).BehaviourData(:,5) == NovMouse) | (MouseData(k).BehaviourData(:,6) == NovMouse)); 

[Amy Hassett]

thanks!

[Ameer Hamza]

I am glad to be of help!