nelson: nonparametric Nelson-Aalen estimates

In ggRandomForests: Visually Exploring Random Forests

nonparametric Nelson-Aalen estimates

Description

nonparametric Nelson-Aalen estimates

Usage

nelson(interval, censor, data, by = NULL, weight = NULL, ...)

Arguments

interval	name of the interval variable in the training dataset.
censor	name of the censoring variable in the training dataset.
data	name of the survival training data.frame
by	stratifying variable in the training dataset, defaults to NULL
weight	for each observation (default=NULL)
...	arguments passed to the survfit function

Value

gg_survival object

See Also

gg_survival nelson plot.gg_survival

Examples

# These get run through the gg_survival examples.
data(pbc, package = "randomForestSRC")
pbc$time <- pbc$days / 364.25

# This is the same as gg_survival
gg_dta <- nelson(
  interval = "time", censor = "status",
  data = pbc
)

plot(gg_dta, error = "none")
plot(gg_dta)

# Stratified on treatment variable.
gg_dta <- gg_survival(
  interval = "time", censor = "status",
  data = pbc, by = "treatment"
)

plot(gg_dta, error = "none")
plot(gg_dta, error = "lines")
plot(gg_dta)

gg_dta <- gg_survival(
  interval = "time", censor = "status",
  data = pbc, by = "treatment",
  type = "nelson"
)

plot(gg_dta, error = "bars")
plot(gg_dta)

ggRandomForests documentation built on May 12, 2026, 5:07 p.m.