Something funky with indexes and DataFrames

[CamDavidsonPilon]

Hi @matthewwardrop!
Something came up in lifelines related to Dataframe indexes and transform. Here's a repo example:

from formulaic import Formula

design_info = Formula("1")

df = pd.DataFrame(np.arange(5), index=[0, 2, 4, 6, 8])

print(design_info.get_model_matrix(df)) # should have nulls in half of it

[matthewwardrop]

Thanks for reporting @CamDavidsonPilon . Will take a look at fixing it now!

[matthewwardrop]

Whoops. Some series were being generated with the default index (and being conflated with the original index). This was fixed in 6567f44, and shipped as part of version 0.2.2 .

Let me know if anything else crops up!

[CamDavidsonPilon]

Thanks for the fast response!