Create variable from string

I would like to alter a string in order to access a certain cell of a Matrix. Can I do that by creating a string first? For example

s='{2,1}{1,1}' and then somehow get A{2,1}{1,1}

Actually I would like to create something like a reference. Like

x=A{2,1} x=x{1,1} x=5

and then at the same time change A so I get the following value when calling

>>A{2,1}{1,1}

A{2,1}{1,1} =

5

Usually I would think of using a pointer but that does not seem to be possible in Matlab, or am I mistaken?

[Stephen23]

Avoid doing this.

MATLAB does not support pointers, and creating some hack-code to improvise them will not be robust.

In particular using dynamic strings like this to define indexing (or variables names) is liable to difficult-to-debug errors. Learn to program using more robust techniques, and your own life will become much easier...

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

Answer 2

[Walter Roberson]

eval(['A', s])

and for assignment

eval(['A', s, ' = ', Value_As_string])

Not recommended at all.

[Stephen23]

@Teresa: note that those words "Not recommended at all" that Walter Roberson wrote are actually very significant.