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kaplan_meier_fitter: RuntimeWarning: divide by zero encountered in log

See original GitHub issue

When I try to calculate KM for

T = [0, 3.5232, 3, 2, 1, 2]
E = [1, 1, 0, 0, 1, 1]

I read the following warning:

.../kaplan_meier_fitter.py:97: RuntimeWarning: divide by zero encountered in log
  return (np.log(population - deaths) - np.log(population))

Are there any consequence and is there a way to fix?

Issue Analytics

State:
Created 7 years ago
Comments:7 (4 by maintainers)

Top GitHub Comments

1reaction

CamDavidsonPiloncommented, Nov 8, 2016

shoot, hm, let me get this fixed asap

1reaction

CamDavidsonPiloncommented, Nov 8, 2016

Hey there, I actually fixed that in a recent change, but I have not released a new cut. One second…

Okay, I cut a new release, 0.9.3.1, that handles these warnings (they are harmless btw)

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