Description Usage Arguments Value Examples
This function adds the confident interval area of one group (strata) of a survfit object to an existing plot. For competitive risk models, it draws the confidence interval of one group and one event; the event-number needs to be specified. If two overlapping confidence intervals are drawn (by two function calls) in one plot, the use of transparent color is recommended, for example "adjustcolor("red",0.1).
1 | confIntArea(x, group, event, col = "grey", invert = FALSE)
|
x |
A survfit (survival-package) or a Cuminc (mstate-package) object. |
group |
Number of the group (=strata) of which the confidence interval should be plotted. If the survfit-object has only one strata, this parameter can be omitted. |
event |
If the model-object is a multistate-model, the number of the event-type needs to be specified. |
col |
Color of the confident interval area. Default is "grey". A transparent value is recommended, for example "adjustcolor("red",0.1). |
invert |
Inverts the area if TRUE, default is FALSE. |
Draws an area for the confidence interval.
1 2 3 4 5 6 7 8 9 10 | require(survival)
aml_model <- with(aml, survfit(Surv(time, status)~x))
col1 <- adjustcolor("red",0.2); col2 <- adjustcolor("blue",0.2)
survPlot(xmax=50, space.nrAtRisk=0.32)
confIntArea(aml_model, col=col1, group=1)
confIntArea(aml_model, col=col2, group=2)
survCurve(aml_model, group=1)
survCurve(aml_model, group=2, lty=2)
nrAtRisk(aml_model, group=1, y=-0.17, bgcol.flag=col1, label="maintain")
nrAtRisk(aml_model, group=2, y=-0.24, bgcol.flag=col2, lty.flag=2, label="non-maint.")
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Loading required package: survival
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