Avoiding a "RuntimeWarning: divide by zero encountered in log" for array with some zero values

Asked Mar 22 '23 at 05:08

Active Mar 22 '23 at 05:08

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I want to pass a 2D numpy array z into the function:

np.log(np.abs(z))

I expect z to have a few values that are zero. Is there a way I can override this warning:

RuntimeWarning: divide by zero encountered in log

I know I can just do

np.log(np.abs(z) + 1)

or something similar, but what are my options?

asked Mar 22 '23 at 05:08

Jacob Ivanov

https://stackoverflow.com/questions/21610198/runtimewarning-divide-by-zero-encountered-in-log – Guy Mar 22 '23 at 05:10
You can use `np.ma.log(np.abs(z))` – Unmitigated Mar 22 '23 at 05:13

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