how can i extract baseline hazards from a coxPHFitter function in Lifelines and the coefficients for my variates

Question

Below is the sample code I got from the documentation website. I want to access the baseline hazards and the coefficients of the variates. '''

from lifelines import CoxPHFitter
from lifelines.datasets import load_rossi

rossi_dataset = load_rossi()


#rossi_dataset.head()
cph = CoxPHFitter()
cph.fit(rossi_dataset, duration_col='week', event_col='arrest',)

cph.print_summary()

'''

Cam.Davidson.Pilon · Accepted Answer · 2020-03-11T16:43:48.863

2

From the lifelines docs:

To access the coefficients and the baseline hazard directly, you can use params_ and baseline_hazard_ respectively.

from lifelines import CoxPHFitter
from lifelines.datasets import load_rossi

rossi_dataset = load_rossi()


#rossi_dataset.head()
cph = CoxPHFitter()
cph.fit(rossi_dataset, duration_col='week', event_col='arrest',)

print(cph.params_)

print(cph.baseline_survival_)

edited Mar 11 '20 at 16:43

answered Mar 11 '20 at 01:47

Cam.Davidson.Pilon

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thank you. I have another question though? how can I access a specific baseline hazard for a specific duration? – Tapiwanashe Kanda Mar 11 '20 at 17:08
`baseline_survival_` returns a DataFrame with an index, so you access it using normal dataframe operators: `.loc[t]` – Cam.Davidson.Pilon Mar 11 '20 at 23:53

how can i extract baseline hazards from a coxPHFitter function in Lifelines and the coefficients for my variates

1 Answers1