Cameron Davidson-Pilon

### Discussed in https://github.com/CamDavidsonPilon/lifelines/discussions/1318 Originally posted by **cedricdeboom** September 3, 2021 It would be nice to be able to compute the expected survival time from a fitted survival function. It...

https://github.com/derrynknife/SurPyval/issues/18#issuecomment-894596542

`proportional_hazard_test` tests don't match R well

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Possible solution: https://github.com/CamDavidsonPilon/lifelines/issues/997#issuecomment-652567848

Error in CoxPH piecewise baseline hazard prediction

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hi @CamDavidsonPilon Noticed the following issue predicting hazard rate, seems unexpected and probably a bug. Repro below ```python from lifelines import CoxPHFitter from lifelines.datasets import load_rossi rossi = load_rossi() cph...

Is it possible to draw random values from the distributions fitted by `WeibullAFTFitter`? Something along these lines: ```python from lifelines import WeibullAFTFitter from lifelines.datasets import load_rossi rossi = load_rossi() aft...

Formula in docs

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there should _not_ be a subscript `i` in the `Xbar i` on for Cox time varying formula. _Originally posted by @CamDavidsonPilon in https://github.com/CamDavidsonPilon/lifelines/discussions/1191#discussioncomment-200656_

https://lifelines.readthedocs.io/en/latest/fitters/regression/CoxPHFitter.html#plot_partial_effects_on_outcome More issues on that page: 1. `Deprecated as of v0.25.0. Use plot_partial_effects_on_outcome instead.` link doesn't work 2. Image is broken: `plot_covariate_example3`

try AFT with column of zeros