How to create another vector based on some if condition?

I have a 2*1 vector of values

A = [500

200]

condition between or equal to 300 and 500.

Output should be.

B = [true

false];

Any simplest way without using loop. Any help is appreciated. Thanks

Answer 1

[Guillaume]

It's rare to have to use if in matlab, and it's certainly not the route to go if you want to operate on whole vectors or matrices at once since if only work with scalar expression. If you were to use if, you'd have to loop over your array.

Your A is trivially transformed into B with:

B = A >= 300 & A <= 500

No if or loop needed.