#Geometric Means
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You cannot—it is impossible to calculate a geometric mean that includes negative numbers. To use negative numbers in a geometric mean calculation, you have to convert them to a proportion. For example, if you had an investment that returned -3%, you would use 1 - 0.03 = 0.97 as your value.
well its sort of possible, you need to use complex numbers when applying a root of even degree to a negative number, but im not sure if theres any point in applying GM to negative numbers
Tbh would you really want to take that hassle
no
exactly