如何从生命线中的coxPHFitter函数和变量的系数中提取基线风险

Question

下面是我从文档网站获得的示例代码。我想访问基线风险和变量系数。 '''

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()

'''

Answer 1

从生命线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_)