TwoSSPmodifier: ROC when survival goes to 0 for either group

In SandraCastroPearson/2SPcurves: A Package for the Analysis of Time to Event Outcomes Using Two-Sample Probability Curves

ROC when survival goes to 0 for either group

Description

ROC when survival goes to 0 for either group

Usage

TwoSSPmodifier(
  time,
  event,
  group,
  modifier,
  area = FALSE,
  mlabels,
  xlab,
  ylab,
  main,
  cex.axis = 1.5,
  cex.lab = 1.5,
  legend.inset = 0.02,
  legend.cex = 1.5,
  lty = c(1, 6),
  lwd = 1.5
)

Arguments

time	Time to event or censoring.
event	An indicator vector with values of 1 for individuals who had the event occurred or 0 if the participant was censored.
group	An indicator vector with values of 1 if the the participant was in the treatment arm and 0 otherwise.
modifier	An indicator vector with values of 1 for a certain level of the modifier and 0 otherwise. Example: 0 for male and 1 for female.
area	Logical argument to indicate if user wants an estimate for area under the curve. Default is TRUE.
mlabels	A vector with two strings to label the levels of the modifier.
xlab	String argument for the horizontal axis label of the ROC curve.
ylab	String argument for the vertical axis label of the ROC curve.
main	String argument for the title of the ROC curve.
cex.axis	Optional graphical parameter for magnification of axis annotation. See par for more details.
cex.lab	Optional graphical parameter for magnification of x and y labels. See par for more details.
legend.inset	Optional graphical parameter controling the inset of the legend.
legend.cex	Optional graphical parameter for magnification of the legend's text.
lty	Optional graphical parameter to set the type of line to use. Can be a number or a vector. See par for more details.
lwd	Optional graphical parameter for line width relative to the default. See par for more details.

Value

A plot of the ROC curve and an ROCsurv object containing:

• A list with two survfit objects for the treatment and control groups when the modifier=0.

• A list with two survfit objects for the treatment and control groups when the modifier=1.

• If area = TRUE, the areas under the curve for the two ROCs in the given plot.

SandraCastroPearson/2SPcurves documentation built on June 15, 2022, 3:42 a.m.