alpha property of KaplanMeierFitter object does not reflect value passed at initialization.

[TristanBoudreault]

.alpha property of KaplanMeierFitter object does not reflect value passed at initialization.

Steps to reproduce

import lifelines
print(lifelines.__version__) # out: '0.25.7'

kmf = KaplanMeierFitter()
kmf.fit([1], [True], alpha=0.9) #notice alpha is not the default 0.05
kmf.alpha #out: 0.05
# expected output 0.9

Screenshot from mode analytics notebook

[TristanBoudreault]

The code is actually behaving as expected. In the example above, the value passed in the alpha argument to the fit() method is scoped only to the method.

[CamDavidsonPilon]

👋 @TristanBoudreault

okie! But clearly this behaviour is poorly documented, so I'm going to reopen this issue with a docs tag.