Saving the output of a loop into a matrix or a vector

Hello,

How can we save the output of a loop when it is a series of matrices

Thank you,

Answer 1

[Stephen23]

https://www.mathworks.com/help/matlab/matlab_prog/string-evaluation.html

https://www.mathworks.com/matlabcentral/answers/304528-tutorial-why-variables-should-not-be-named-dynamically-eval

[Sha]

Thank you very much for your detailed reply. I am trying to go through the links to get a better understanding of the problem.

"if you continue to include data in the variable names then you will find yourself fighting many more of these battles against MATLAB"

For example I can start using " X = sym('X',[3 8])" which gives me my 24 variables in a matrix, but then what I would like to do is make "column" 1 or index "1" correspond to state "HHH" then column 2 "LHH" (I permute the 2 letters in sequences of "3" so I get 8 possibilities). Is there an easy way to do that ?

Thank you very much

[Stephen23]

Sorry, I do not use sym, so I have no advice on that. Mixing data (your "states") and the variables' names is what is not recommended, as should be clear from those links.

• You could create a separate (cell?) array to store those states and whose columns correspond to the columns of the data matrix. This would be a typical and easy MATLAB solution.
• You might find that using a table suits your needs better than a simple matrix.