survCurve {survCurve}

Draws a survival curve for one group and one event.

Description

This function draws the confident interval area of one group of a survfit object. For Competitive risk analysis, the event number needs to be specified.

Usage

survCurve(
  x,
  group,
  event,
  conf.int = FALSE,
  mark.time = FALSE,
  col = "black",
  lty = 1,
  lwd = 1,
  cex.markTime = 1,
  pch.markTime = 3,
  col.confInt = 1,
  lty.confInt = 2,
  lwd.confInt = 1,
  invert = FALSE
)

Arguments

x

A survfit or a Cuminc object.

group

Number of the chosen group. If the model-object has only one Strata (Group), this parameter can be omitted.

event

If the model-object is a multistate-model, the event-type needs to be specified.

conf.int

The confidence-interval is plotted as lines if TRUE. Default is FALSE

mark.time

The times of censoring are marked if TRUE. Default is FALSE

col

Color of the line. Default is "black".

lty

Line-type of the line. Default is 1.

lwd

Line-wide of the line. Default is 1.

cex.markTime

Size of the marks for censoring. Default is 1.

pch.markTime

Character of the marks for censoring. Default is 1 (stroke).

col.confInt

Color of the line for the confidence interval. Default is "black".

lty.confInt

Line-type of the line for the confidence interval. Default is 2.

lwd.confInt

Line-wide of the line for the confidence interval. Default is 1.

invert

Inverts the curve if TRUE. Default is FALSE.

Value

Draws the survival curve for one group / one event.

Examples

  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.")