Nothing
rfsrc.fast <- function(formula, data,
ntree = 500,
nsplit = 10,
bootstrap = "by.root",
sampsize = function(x){min(x * .632, max(150, x ^ (3/4)))},
samptype = "swor",
samp = NULL,
ntime = 50,
forest = FALSE,
save.memory = TRUE,
...)
{
## --------------------------------------------------------------
##
## preliminary processing
##
## --------------------------------------------------------------
## verify key options
if (!is.function(sampsize) && !is.numeric(sampsize)) {
stop("sampsize must be a function or number specifying size of subsampled data")
}
##--------------------------------------------------------------
##
## extract additional options specified by user
## we lock this down to allowed types
##
##--------------------------------------------------------------
## list of forest parameters
rfnames <- get.rfnames(hidden = TRUE)
## restrict to allowed values
rfnames <- rfnames[rfnames != "data" &
rfnames != "ntree" &
rfnames != "nsplit" &
rfnames != "bootstrap" &
rfnames != "sampsize" &
rfnames != "samptype" &
rfnames != "ntime" &
rfnames != "forest" &
rfnames != "save.memory" ]
## get the permissible hidden options
## add formula if present
dots <- list(...)
dots <- dots[names(dots) %in% rfnames]
if (!missing(formula)) {
dots$formula <- formula
}
## set bootstrap accordingly if the user has provided their own sampling
## ntree and sampsize are handled in rfsrc
if (!is.null(samp)) {
bootstrap <- "by.user"
}
## manually set key hidden options if forest is not requested
if (!forest) {
dots$terminal.qualts <- FALSE
dots$terminal.quants <- FALSE
dots$save.memory <- TRUE
}
##--------------------------------------------------------------
##
## make the grow call and return the object
##
##--------------------------------------------------------------
return(do.call("rfsrc",
c(list(data = data,
ntree = ntree,
nsplit = nsplit,
bootstrap = bootstrap,
sampsize = sampsize,
samptype = samptype,
samp = samp,
ntime = ntime,
forest = forest), dots)))
}
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