plot.nelsonaalen_npdf function

Plot Nelson-Aalen estimates of group-specific cumulative hazard from a nonparametric discrete frailty model

## S3 method for class 'nelsonaalen_npdf'
plot(x, xlim = NULL, ylim = NULL,
  xlab = NULL, ylab = NULL, cols = NULL, ...)

Arguments

• x: Object returned by nelsonaalen_npdf representing Nelson-Aalen estimates from a nonparametric discrete frailty model
• xlim: x-axis limits (vector of 2)
• ylim: x-axis limits (vector of 2)
• xlab: x-axis label
• ylab: y-axis label
• cols: vector of colour names or numbers, of the same length as the number of groups
• ...: options to pass to the generic plot function

Examples

x = npdf_cox( Surv(time, status) ~ x, groups=family, data=weibdata2030, K = 2,
                estK=FALSE, eps_conv=10^-4)
object = nelsonaalen_npdf( x )
plot( object )
plot( object, xlim=c(0,200), ylim=c(0,2),
     xlab="Follow-up days", ylab="Nelson-Aalen estimate",
     cols=ifelse(x$belonging==2, "purple", "black"))

See Also

nelsonaalen_npdf