MATLAB and Simulink resources for Arduino, LEGO, and Raspberry Pi test

Learn moreOpportunities for recent engineering grads.

Apply TodayThis 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)

vi =

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)

big =

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.

158 correct solutions
83 incorrect solutions

Last solution submitted on Jun 11, 2016