How to calculate mean in python?

Question

I have a list that I want to calculate the average(mean?) of the values for her. When I do this:

import numpy as np #in the beginning of the code

goodPix = ['96.7958', '97.4333', '96.7938', '96.2792', '97.2292']
PixAvg = np.mean(goodPix)

I'm getting this error code:

ret = um.add.reduce(arr, axis=axis, dtype=dtype, out=out, keepdims=keepdims)

TypeError: cannot perform reduce with flexible type

I tried to find some help but didn't find something that was helpful

Thank you all.

Answer 1

Convert you list from strings to np.float:

>>> gp = np.array(goodPix, np.float)
>>> np.mean(gp)
96.906260000000003