CODEWITHSUNDEEP
pythonsurvival-analysislifelines
Khaled DELLAL
Khaled DELLAL

Reputation: 921

How to set "step_size" to a smaller value? because I got ConvergenceWarning: Newton-Rhaphson failed to converge sufficiently

In the estimation of CoxPH model I got the following error: ConvergenceWarning: Newton-Rhaphson failed to converge sufficiently.

In the documentation they talks about setting "step_size" to smaller value,

I coudn't find where I can use "fit_options" and "step_size"

Upvotes: 2

Views: 536

Answers (1)

sve007
sve007

Reputation: 71

Setting it directly as a parameter in the fit-method of the model class is apparently no longer possible as of lifelines version 0.27.1. You'll have to work with the fit_options in the method, or use an older version of the package.

Upvotes: 2

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