This is a basic MATLAB operation. It is for instructional purposes.
Logical indexing works like this.
thresh = 4; vec = [1 2 3 4 5 6 7 8];
vi = (vec > thresh)
0 0 0 0 1 1 1 1
Once you have this TRUE FALSE vector (I call it vi: Valid Indices)
It can be used to get the values out:
big = vec(vi)
5 6 7 8
Given a vector, vec, and a value, v, return a binary vector that represents the indices where vector, vec, is equal to scalar, v.
Note, this works just as well with scalars and matrices.
To get the indices where this comparison is true, see this Cody problem.
MATLAB and Simulink resources for Arduino, LEGO, and Raspberry PiLearn more
Opportunities for recent engineering grads.Apply Today
New to MATLAB?Learn MATLAB today!
Play games and win prizes!Learn more