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PHReg.efron_gradient()

statsmodels.duration.hazard_regression.PHReg.efron_gradient

PHReg.efron_gradient(params) [source]: Returns the gradient of the log partial likelihood evaluated at params, using the Efron method to handle tied times.

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http://statsmodels.sourceforge.net/stable/generated/statsmodels.duration.hazard_regression.PHReg.efron_gradient.html

doc_statsmodels

2017-01-18 16:13:34

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