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@CamDavidsonPilon CamDavidsonPilon released this Sep 4, 2019 · 49 commits to master since this release

0.22.4 - 2019-09-04

New features
  • Some performance improvements to regression models.
  • lifelines will avoid penalizing the intercept (aka bias) variables in regression models.
  • new utils.restricted_mean_survival_time that approximates the RMST using numerical integration against survival functions.
API changes
  • KaplanMeierFitter.survival_function_'s' index is no longer given the name "timeline".
Bug fixes
  • Fixed issue where concordance_index would never exit if NaNs in dataset.
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