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Resizing a Matrix in MATLAB?

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Nisar Ahmed
Nisar Ahmed on 17 Nov 2022
Commented: Nisar Ahmed on 17 Nov 2022
Hi,
Q.1: I have a matrix A of size 106 1 100. and after A = squeeze(A), the size is 106 100. Suppose I want unsqueeze A again to get back its size 106 1 100. How can I unsqeeze it?
Q.2: I have a matrix B of size 100 97 and I want resize it as 100 106 by adding 9 columns in the start (each has constant number). how I can do it in MATLAB?

Accepted Answer

Torsten
Torsten on 17 Nov 2022
%Q1
A = rand(106,1,100);
size(A)
ans = 1×3
106 1 100
A = squeeze(A);
size(A)
ans = 1×2
106 100
A = reshape(A,[106 1 100]);
size(A)
ans = 1×3
106 1 100
%Q2
A = rand(100,97);
start_A = rand(100,9);
A = [start_A,A];
size(A)
ans = 1×2
100 106
  1 Comment
Nisar Ahmed
Nisar Ahmed on 17 Nov 2022
@Torsten In Q2, start_A = rand(100,9); how can I use a constant value in all 9 columns instead of rand? Suppose I want to fill first 9 columns with 2450 value.

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