flexsurv: model.frame.flexsurvreg – R documentation

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flexsurv

model.frame.flexsurvreg

Extract original data from flexsurvreg objects.

Description

Extract the data from a model fitted with flexsurvreg.

Usage

## S3 method for class 'flexsurvreg'
model.frame(formula, ...)

## S3 method for class 'flexsurvreg'
model.matrix(object, par = NULL, ...)

Arguments

`formula`	A fitted model object, as returned by `flexsurvreg`.
`...`	Further arguments (not used).
`object`	A fitted model object, as returned by `flexsurvreg`.
`par`	String naming the parameter whose linear model matrix is desired. The default value of `par=NULL` returns a matrix consisting of the model matrices for all models in the object `cbind`ed together, with the intercepts excluded. This is not really a “model matrix” in the usual sense, however, the columns directly correspond to the covariate coefficients in the matrix of estimates from the fitted model.

Value

model.frame returns a data frame with all the original variables used for the model fit.

model.matrix returns a design matrix for a part of the model that includes covariates. The required part is indicated by the "par" argument (see above).

Author(s)

C. H. Jackson chris.jackson@mrc-bsu.cam.ac.uk