survMisc (version 0.4.6)

plot.MultiCoxph: Plot an multi.coxph object

Description

Plot an multi.coxph object

Usage

## S3 method for class 'multi.coxph':
plot(x, type = c("p", "w", "s"), ...)

Arguments

x

An object of class multi.coxph

...

Additional arguments. These are passed to graphics::plot.default or (if type="s") graphics::barplot.

type

Type of plot

Value

• A graph (base graphics).

Details

One of three types of graph is possible.

• Iftype="p"thenpoints representing the information criterion (IC) for each model are plotted. A line is also drawn 2 units above the minimum IC. Models below this are typically worth considering. If it is not visible on the plot, then important models have have been overlooked, suggesting a larger value forconfSetSizemay be appropriate.
• Iftype="w"then theweights (relative evidence weights) of the models are plotted. These can be interpreted as the probability that each model is the best in the set. A red vertical line is shown where the cumulated evidence weight reaches 95%.
• Iftype="s"then thesum of the relative evidence weights for each term/ coefficient is plotted. The sum is taken across all models in which the term appears.

See Also

multi

Examples

set.seed(1)
dt1 <- genSurvDt(b=2, c=5, f=0, model=FALSE)
m1 <- multi(coxph(Surv(t1, e) ~ ., data=dt1), crit="bic")
plot(m1, type="w")