survLable {survCurve}

Adds number at risk of a survival model to a plot. Adds label to plot.

Description

This function adds a text label to the plot, which is preceded by a small identifier, similar to the function nrAtRisk.

Usage

survLable(
  text,
  x,
  y,
  font = 1,
  cex = 1,
  col.text = "black",
  len.flag,
  lty.flag = 1,
  lwd.flag = 1,
  bgcol.flag,
  lncol.flag = "black"
)

Arguments

text

String, content of the label.

x

A numeric value for the position at the x-axis.

y

A numeric value for the position at the y-axis.

font

Font of the label.

cex

Font size of the label

col.text

Color of the label.

len.flag

Length of the flag.

lty.flag

Line-typ of the flag. Value is 1 if not spezified.

lwd.flag

Line-wide of the flag. Value is 1 if not spezified.

bgcol.flag

Background-color of the flag (corresponding to the color of the confidence interval in the plot). No color if not value is specified.

lncol.flag

Color of the line of the flag. Default is "black".

Value

Draws the number at risk to an existing plot.

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)
  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)
  survLable("maintain", 1, 0.2, bgcol.flag=col1)
  survLable("non-maint.", 1, 0.1, bgcol.flag=col2, lty.flag=2)