Find variables in a function that depend on a certain variable
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I have a function with many calculations in it. I want to identify all the variables within that function that were calculated from a certain variable, even indirectly. For example,
bankBalance = 100 ;
groceries = bankBalance*0.8 ;
iceCream = groceries*0.1 ;
In this case, I want to identify both groceries and iceCream as variables that depend on bankBalance, even though bankBalance doesn't appear in the iceCream calculation. In reality there are 50+ variables derived from my chosen variable, and 200+ that are not. How can I list all variables that depend on a chosen variable within the function? I could set bankBalance to NaN and see which variables become NaNs, but perhaps there is a better way.
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