MATLAB: Rename a variable within global (function in function)

Question

I am creating a new function that includes a previously created function in the hopes of editing the inputs. However, I am wanting to edit two variables that are stored within the Global set. Is there a way to do this and pass by the global to set a new input value for all the functions that are called within?

Answer 1

Simply assign it to another variable.

global evil_global_var;
saved_evil_global_val = evil_global_var;
evil_global_var = new_val;
... % do your stuff here
evil_global_var = saved_evil_global_val;  % retore your global value here

Now, most globals are unncessary and can be replaced be well-defined functions with input arguments.

Blessings,

Spencer