flexsurv (version 0.6)

plot.flexsurvreg: Plots of fitted flexible survival models

Description

Plot fitted survival, cumulative hazard or hazard from a parametric model against nonparametric estimates to diagnose goodness-of-fit. Alternatively plot a user-defined function of the model parameters against time.

Usage

## S3 method for class 'flexsurvreg':
plot(x, newdata=NULL, X=NULL, type="survival",
        fn=NULL, t=NULL, start=NULL,
        est=TRUE, ci=NULL, B=1000, cl=0.95,
        col.obs="black", lty.obs=1, lwd.obs=1,
        col="red", lty=1, lwd=2,
        col.ci=NULL, lty.ci=2, lwd.ci=1, ylim=NULL,
        add=FALSE,...)

Arguments

x

Output from flexsurvreg or flexsurvspline, representing a fitted survival model object.

newdata

Data frame containing covariate values to produce fitted values for. See summary.flexsurvreg. If there are only factor covariates in the model, then Kaplan-Meier (or nonparamet

X

Alternative way to supply covariate values, as a model matrix. See summary.flexsurvreg. newdata is an easier way.

type

"survival" for survival, to be plotted against Kaplan-Meier estimates from plot.survfit. "cumhaz" for cumulative hazard, plotted against transformed K

fn

Custom function of the parameters to summarise against time. The first two arguments of the function must be t representing time, and start representing left-truncation points, and any remaining arguments must be

t

Vector of times to plot fitted values for, see summary.flexsurvreg.

start

Left-truncation points, see summary.flexsurvreg.

est

Plot fitted curves (TRUE or FALSE.)

ci

Plot confidence intervals for fitted curves. By default, this is TRUE if one observed/fitted curve is plotted, and FALSE if multiple curves are plotted.

B

Number of simulations controlling accuracy of confidence intervals, as used in summary. Decrease for greater speed at the expense of accuracy, or set B=0 to

cl

Width of confidence intervals, by default 0.95 for 95% intervals.

col.obs

Colour of the nonparametric curve.

lty.obs

Line type of the nonparametric curve.

lwd.obs

Line width of the nonparametric curve.

col

Colour of the fitted parametric curve(s).

lty

Line type of the fitted parametric curve(s).

lwd

Line width of the fitted parametric curve(s).

col.ci

Colour of the fitted confidence limits, defaulting to the same as for the fitted curve.

lty.ci

Line type of the fitted confidence limits.

lwd.ci

Line width of the fitted confidence limits.

ylim

y-axis limits: vector of two elements.

add

If TRUE, add lines to an existing plot, otherwise new axes are drawn.

...

Other options to be passed to plot.survfit or muhaz, for example, to control the smoothness of the nonparametric hazard estimates. Th

concept

Survival

See Also

flexsurvreg