PHReg.weighted_covariate_averages(params) [source]

Returns the hazard-weighted average of covariate values for subjects who are at-risk at a particular time.

Parameters: params (ndarray) – Parameter vector
Returns: averages – averages[stx][i,:] is a row vector containing the weighted average values (for all the covariates) of at-risk subjects a the i^th largest observed failure time in stratum stx, using the hazard multipliers as weights.
Return type: list of ndarrays


Used to calculate leverages and score residuals.

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© 2006–2008 Scipy Developers
© 2006 Jonathan E. Taylor
Licensed under the 3-clause BSD License.