Rename a variable within global (function in function)

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new2matlab 2020-2-3

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https://ww2.mathworks.cn/matlabcentral/answers/503440-rename-a-variable-within-global-function-in-function

回答： Spencer Chen 2020-2-3

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?

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Answer 1

Spencer Chen 2020-2-3

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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