Question

I have a vector a = [1 5 3 4 2]. I’d like to find all elements of a, which are 1<a<5. How do I do it in Matlab?

Personally I’ve developed one solution, but it’s cumbersome:

a = [1 5 3 4 2];
ix = find(a>1);
ix = ix(find(a(ix)<5));
disp(a(ix))

What’s a better way?

Answer 1

Use logical indexing:

>> a = [1 5 3 4 2];
>> a = a(1 < a & a < 5)
a = 
    3    4    2