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I'm trying to calculate CLV(Customer Life Value) using lifetimes python library

so, I am fitting purchase behavior data on ParetoNBDFitter and fitting purchase price data on GammaGammaFitter.

and When I'm trying to calculate CLV based on GammaGammaFitter.customer_lifetime_value(), there are same errors about

NotImplementedError: Cannot apply ufunc <ufunc 'hyp2f1'> to mixed DataFrame and Series inputs.

Interestingly, I could calculate the CLV yesterday successfully, but today the above error is coming out. The code and data have not been modified.

My code looped by date, each time I redefined the model and then calculated the CLV.

enter image description here

m4n0
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오진석
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1 Answers1

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Workaround: use numpy instead of series. That is, do not use:

f.frequency

but

f.frequency.values
Jeremy Caney
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Robert.Huang
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