How to Rearrange a Matrix

I have a matrix that I would like to rearrange into a new matrix.

Below is a simplified problem that I'm experiencing:

Matrix 1:

Column 1(Elements) Column 2 (Stress)

1 3.023

2 43.48

3 4956

4 45687

5 135

6 444

7 7916

8 646

9 6468

10 777

11 6548

12 4979

New Matrix:

Column 1(Elements) Column 2 (Stress)

2 43.48

4 45687

6 444

7 7916

8 646

12 4979

admittedly, I feel a bit stuck about this. Rather than continuing, I’m wondering if I could lean on your expertise and insights to learn how to do it.

Thank you :)

[Stephen23]

@Mohammad Danial Bin Kamarul Zaman: what is the algorithm/rule/relationship that maps matrix 1 to matrix 2?

[Mohammad Danial Bin Kamarul Zaman]

yes sir. I do but I'm super grateful I managed to sort it out :). Thank you

Answer 1

[Kevin Phung]

% let M be your matrix of two columns
ind = [2 4 6 7 8 12]; % desired indices
new_M = M(ind,:) 

[Mohammad Danial Bin Kamarul Zaman]

thank you soo much :)

[Kevin Phung]

youre welcome!

[Mohammad Danial Bin Kamarul Zaman]

If you don't mind, I really appreciate it if you could have a look at another problem that I've encountered. Please follow the link below as attached:

https://uk.mathworks.com/matlabcentral/answers/445222-how-do-i-make-a-code-that-store-large-amount-of-information-from-excel-into-a-matrix

My apologies, i'm still new to MATLAB and eager to learn more about it.