breslow object {penalized}R Documentation

Breslow estimator object

Description

Stores one or more survival stepfunctions of the Kaplan-Meier and Breslow type.

Details

Breslow objects are generally created by the penalized function and related functions.

Slots

time:
Object of class "vector". The time points at which the function starts, jumps or ends.
curves:
Object of class "matrix". The values of the curve at each time point. Note that the function is left-continuous. Curves are stored as a matrix of dimension (# curves) x (# timepoints).

Methods

"["
(breslow): Coerces the object to a matrix (as as.matrix) and selects rows and/or columns.
"[["
(breslow): Selects a subset of the curves.
as.data.frame
(breslow): Returns the "curves" slot together with the "time" slot in a data.frame.
as.list
(breslow): Coerces the object to a list.
as.matrix
(breslow): Returns the "curves" slot with the "time" slot as column names.
plot
(breslow): Straightforward plotting (all curves in one plot).
show
(breslow): Summarizes the dimensions of the object.
survival
(breslow): Takes a second argument (time). Extracts the value of the survival curve(s) at any time point.

Author(s)

Jelle Goeman: j.j.goeman@lumc.nl

See Also

penalized.


[Package penalized version 0.9-23 Index]