# How can I make that using MATLAB

1 view (last 30 days)
Fayez Aljuaid on 10 Oct 2021
Commented: Walter Roberson on 10 Oct 2021
##### 0 CommentsShowHide -1 older comments

Sign in to comment.

### Answers (1)

Walter Roberson on 10 Oct 2021
Edited: Walter Roberson on 10 Oct 2021
Probability for discrete events is number of elements (events) that a condition holds for, times the probability of the event, divided by total weight. Total weight of that matrix is 1.
For example, the entire first row is associated with X = 1, and 1 <= 1 1/2, so take the weights of the first row, 1/12 + 1/16 + 1/12 = 1/6 . None of the entries in the second or third row matches, so nothing is added for those rows. Total probability is (1/6) divided by (1) where the (1) is the total weight for the matrix.
##### 2 CommentsShowHide 1 older comment
Walter Roberson on 10 Oct 2021
Hint:
[A, B] = ndgrid(4:7, 3:8)
A = 4×6
4 4 4 4 4 4 5 5 5 5 5 5 6 6 6 6 6 6 7 7 7 7 7 7
B = 4×6
3 4 5 6 7 8 3 4 5 6 7 8 3 4 5 6 7 8 3 4 5 6 7 8
mask = A == 4 & B >= 6
mask = 4×6 logical array
0 0 0 1 1 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0

Sign in to comment.

### Community Treasure Hunt

Find the treasures in MATLAB Central and discover how the community can help you!

Start Hunting!