eha (version 2.4-5)

plot.phreg: Plots output from a phreg regression

Description

Plot(s) of the hazard, density, cumulative hazards, and/or the survivor function(s) for each stratum.

Usage

# S3 method for phreg
plot(x, fn = c("haz", "cum", "den", "sur"), main = NULL,
xlim = NULL, ylim = NULL, xlab = "Duration", ylab = "", col, lty,
printLegend = TRUE, new.data = NULL, …)

Arguments

x

A phreg object

fn

Which functions shoud be plotted! Default is all. They will scroll by, so you have to take care explicitely what you want to be produced. See, eg, par(mfrow = ...)

main

Header for the plot

xlim

x limits

ylim

y limits

xlab

x label

ylab

y label

col

Color(s) for the curves. Defaults to black.

lty

Line type for the curve(s). Defaults to 1:(No. of strata).

printLegend

Logical, or character ("topleft", "bottomleft", "topright" or "bottomright"); if TRUE or character, a legend is added to the plot if the number of strata is two or more.

new.data

Now deprecated; reference hazard is given by the fit; either zero or the means all covariates, and (always) the reference category for factors.

…

Extra parameters passed to 'plot' and 'lines'.

Value

No return value.

See Also

phreg

Examples

y <- rllogis(40, shape = 1, scale = 1)
x <- rep(c(1,1,2,2), 10)
fit <- phreg(Surv(y, rep(1, 40)) ~ x, dist = "loglogistic")
plot(fit)