# plot.aalen: Plots estimates and test-processes In timereg: Flexible Regression Models for Survival Data

 plot.aalen R Documentation

## Plots estimates and test-processes

### Description

This function plots the non-parametric cumulative estimates for the additive risk model or the test-processes for the hypothesis of time-varying effects with re-sampled processes under the null.

### Usage

```## S3 method for class 'aalen'
plot(
x,
pointwise.ci = 1,
hw.ci = 0,
sim.ci = 0,
robust.ci = 0,
col = NULL,
specific.comps = FALSE,
level = 0.05,
start.time = 0,
stop.time = 0,
mains = TRUE,
xlab = "Time",
ylab = "Cumulative coefficients",
score = FALSE,
...
)
```

### Arguments

 `x` the output from the "aalen" function. `pointwise.ci` if >1 pointwise confidence intervals are plotted with lty=pointwise.ci `hw.ci` if >1 Hall-Wellner confidence bands are plotted with lty=hw.ci. Only 0.95 % bands can be constructed. `sim.ci` if >1 simulation based confidence bands are plotted with lty=sim.ci. These confidence bands are robust to non-martingale behaviour. `robust.ci` robust standard errors are used to estimate standard error of estimate, otherwise martingale based standard errors are used. `col` specifice colors of different components of plot, in order: c(estimate,pointwise.ci,robust.ci,hw.ci,sim.ci) so for example, when we ask to get pointwise.ci, hw.ci and sim.ci we would say c(1,2,3,4) to use colors as specified. `specific.comps` all components of the model is plotted by default, but a list of components may be specified, for example first and third "c(1,3)". `level` gives the significance level. `start.time` start of observation period where estimates are plotted. `stop.time` end of period where estimates are plotted. Estimates thus plotted from [start.time, max.time]. `add.to.plot` to add to an already existing plot. `mains` add names of covariates as titles to plots. `xlab` label for x-axis. `ylab` label for y-axis. `score` to plot test processes for test of time-varying effects along with 50 random realization under the null-hypothesis. `...` unused arguments - for S3 compatibility

Thomas Scheike

### References

Martinussen and Scheike, Dynamic Regression models for Survival Data, Springer (2006).

### Examples

```
# see help(aalen)
data(sTRACE)
out<-aalen(Surv(time,status==9)~chf+vf,sTRACE,max.time=7,n.sim=100)
par(mfrow=c(2,2))
plot(out,pointwise.ci=1,hw.ci=1,sim.ci=1,col=c(1,2,3,4))
par(mfrow=c(2,2))
plot(out,pointwise.ci=0,robust.ci=1,hw.ci=1,sim.ci=1,col=c(1,2,3,4))

```

timereg documentation built on Nov. 10, 2022, 5:48 p.m.