For loop to extract every 3rd column out of matrix and assign as variable name
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Anna M on 24 Jun 2019
Commented: Anna M on 2 Jul 2019
I have a matrix that is 6001 x 72. I want to iterate through the matrix to extract every 3rd column, from 1:72, and assign it to a variable name, such as X1, X2,...,X24. How can I do this?
I have tried a for loop, but I keep getting error messages. I am a beginner in Matlab.
James Tursa on 24 Jun 2019
Do not do this! This will only lead to headaches downstream in your code for processing these variables (you will need to use more eval( ) statements etc) and will be a nightmare to debug. There are much better alternatives. E.g.,
More Answers (1)
infinity on 24 Jun 2019
Here is an example that you can refer
for i = 1:24
v = genvarname(['X' num2str(i)]);
eval([v '= A(:,3*i);']);
where A is your matrix.
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