how to convert a matlab variable name to a char for use in a title, legend, etc

this is something that seems really basic and useful that I can't understand how to do, or find a previous answer here.

I have a matlab method that accepts some matlab matrix. This matrix has a name, of course.

Inside the method, i want to use that name in a plot's title, so it has to be converted to a char.

how do i do this conversion?

an example to clarify my question:

function(input_matrix)
figure;plot(1:100, input_matrix(:,2)); %just arbitrary example...
title('xxxx') 
end

--> how do i get 'xxxx' to be the characters of input_matrix?

maybe I am missing something very simple...

thanks!

Answer 1

[Stephen23]

https://www.mathworks.com/help/matlab/ref/inputname.html

function(input_matrix)
in_name = inputname(1);
...
title(in_name)
end

[Tamar Hoory]

thanks! this is very helpfull.

[Walter Roberson]

Note that if the input to the function is an expression at all, rather than a plain unindexed variable name, then inputname will return empty.