Add elements to a matrix

26 views (last 30 days)
stelios loizidis on 30 Dec 2020
Commented: stelios loizidis on 30 Dec 2020
Hello.
I have the following problem: I have a matrix A (3x3), and I want to add elements to this matrix and create table B with dimensions 6x6. More specifically, I want the new data to be the same as the original ones.
A=(1 2 3; 4 5 6; 7 8 9)
% A=(1 2 3
% 4 5 6
% 7 8 9)
B=(1 1 2 2 3 3; 4 4 5 5 6 6; 7 7 8 8 9 9)
% B=( 1 1 2 2 3 3
% 4 4 5 5 6 6
% 7 7 8 8 9 9)
That is, the first element of table A (1,1) is 1. Then, in positions (1,1) (1,2) of the new matrix (B) it must again be 1. In position A (1,2) it is 2, then in positions (1,3) and (1,4) of B to appear 2. Respectively with the other elements. How is this done? Your help is important.
0 CommentsShowHide -1 older comments

Sign in to comment.

Accepted Answer

Ameer Hamza on 30 Dec 2020
Edited: Ameer Hamza on 30 Dec 2020
Use repelem()
A = [1 2 3; 4 5 6; 7 8 9]
B = repelem(A, 1, 2)
Note: In MATLAB [ ] are used to create arrays.
6 CommentsShowHide 5 older comments
stelios loizidis on 30 Dec 2020
It works. Thank you very much!!!!

Sign in to comment.

Categories

Find more on Creating and Concatenating Matrices in Help Center and File Exchange

Community Treasure Hunt

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

Start Hunting!