How to Rearrange a Matrix

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Mohammad Danial Bin Kamarul Zaman
评论： Mohammad Danial Bin Kamarul Zaman 2019-2-15
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 :)
  2 个评论
Stephen23
Stephen23 2019-2-15
@Mohammad Danial Bin Kamarul Zaman: what is the algorithm/rule/relationship that maps matrix 1 to matrix 2?
Mohammad Danial Bin Kamarul Zaman
Mohammad Danial Bin Kamarul Zaman 2019-2-15
yes sir. I do but I'm super grateful I managed to sort it out :). Thank you

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Kevin Phung
Kevin Phung 2019-2-15
编辑：Kevin Phung 2019-2-15
% let M be your matrix of two columns
ind = [2 4 6 7 8 12]; % desired indices
new_M = M(ind,:)
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Mohammad Danial Bin Kamarul Zaman
Mohammad Danial Bin Kamarul Zaman 2019-2-15
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.

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