estForestCompRisks: Discrete Survival Random Forest Fitting For Competing Risks

In discSurv: Discrete Time Survival Analysis

Discrete Survival Random Forest Fitting For Competing Risks

Description

Wrapper for estimation of discrete survival random forest for cause-specific competing risk models. Several preprocessing options such as time-dependent covariates are available.

Usage

estForestCompRisks(
  dataShort,
  dataTransform = "dataLongCompRisks",
  formulaVariable = ~timeInt,
  timeColumn,
  eventColumns,
  eventColumnsAsFactor = FALSE,
  timeAsFactor = FALSE,
  idColumn = NULL,
  storeAugData = TRUE,
  ...
)

Arguments

dataShort	Original data set in short format with each row corresponding to one independent observation (class "data.frame").
dataTransform	Specification of the data transformation function from short to long format (class "character"). There are two available options: Without time dependent covariates ("dataLongCompRisks") and with time dependent covariates ("dataLongCompRisksTimeDep"). The default is set to the former.
formulaVariable	Specifies the right hand side of the regression formula (class "formula"). The default is to use the discrete time variable, which corresponds to a covariate free hazard. It is recommended to always include the discrete time variable "timeInt".
timeColumn	Character giving the column name of the observed times. It is required that the observed times are discrete (class "integer").
eventColumns	Character vector giving the column names of the event indicators without censoring column (class "character"). It is required that all events are binary encoded. If the sum of all event indicators is zero, then this is interpreted as a censored observation. Alternatively a column name of a factor representing competing events can be given. In this case the argument eventColumnsAsFactor has to be set TRUE and the first level is assumed to represent censoring.
eventColumnsAsFactor	Should the argument eventColumns be intepreted as column name of a factor variable (class "logical")? Default is FALSE.
timeAsFactor	Specifies if the computed discrete time intervals should be converted to a categorical variable (class "logical"). Default is FALSE. In the default settings the discret time intervals are treated as quantitative (class "numeric").
idColumn	Name of column of identification number of persons (class "character"). Default is set to use function dataLong, that does not need this argument.
storeAugData	Should the augmented data set be saved (class "logical")? Defaults is TRUE. The data set is available as attribute "augData".
...	Specification of additional arguments in function vgam.

Details

Variables in argument formulaVariable need to be separated by "+ ". For example if the two variables timeInt and X1 should be included the formula would be "~ timeInt + X1". The variable timeInt is constructed before estimation of the model.

Value

Returns an object of class "ranger".

Author(s)

Thomas Welchowski [e-mail]

References

\insertRef

tutzModelDiscdiscSurv

See Also

dataLongCompRisks, dataLongCompRisksTimeDep, rpart

Examples

# Example with unemployment data
library(Ecdat)
data(UnempDur)

# Select subsample
SubUnempDur <- UnempDur[1:100, ]

# Estimate GEE models for all events
estModel <- estRegSmoothCompRisks(dataShort = SubUnempDur, dataTransform = "dataLongCompRisks", 
formulaVariable =~ timeInt + age + ui + logwage * ui, 
eventColumns = c("censor1", "censor2", "censor3", "censor4"), timeColumn = "spell")
estModel

discSurv documentation built on April 29, 2026, 9:07 a.m.