do.call: Execute a function call

In BiocGenerics: S4 generic functions used in Bioconductor

Description

do.call constructs and executes a function call from a name or a function and a list of arguments to be passed to it.

NOTE: This man page is for the do.call S4 generic function defined in the BiocGenerics package. See ?base::do.call for the default method (defined in the base package). Bioconductor packages can define specific methods for objects not supported by the default method.

Usage

do.call(what, args, quote=FALSE, envir=parent.frame())

Arguments

what	The default method expects either a function or a non-empty character string naming the function to be called. See ?base::do.call for the details. Specific methods can support other objects. Please refer to the documentation of a particular method for the details.
args	The default method expects a list of arguments to the function call (the names attribute of args gives the argument names). See ?base::do.call for the details. Specific methods can support other objects. Please refer to the documentation of a particular method for the details.
quote, envir	See ?base::do.call for a description of these arguments.

Value

The result of the (evaluated) function call.

Specific methods defined in Bioconductor packages should behave as consistently as possible with the default method.

See Also

• base::do.call for the default do.call method.

• showMethods for displaying a summary of the methods defined for a given generic function.

• selectMethod for getting the definition of a specific method.

• BiocGenerics for a summary of all the generics defined in the BiocGenerics package.

Examples

do.call  # note the dispatch on the 'what' and 'args' args only
showMethods("do.call")
selectMethod("do.call", c("ANY", "ANY"))  # the default method

Example output

Loading required package: parallel

Attaching package: ‘BiocGenerics’

The following objects are masked from ‘package:parallel’:

    clusterApply, clusterApplyLB, clusterCall, clusterEvalQ,
    clusterExport, clusterMap, parApply, parCapply, parLapply,
    parLapplyLB, parRapply, parSapply, parSapplyLB

The following objects are masked from ‘package:stats’:

    IQR, mad, sd, var, xtabs

The following objects are masked from ‘package:base’:

    anyDuplicated, append, as.data.frame, basename, cbind, colnames,
    dirname, do.call, duplicated, eval, evalq, Filter, Find, get, grep,
    grepl, intersect, is.unsorted, lapply, Map, mapply, match, mget,
    order, paste, pmax, pmax.int, pmin, pmin.int, Position, rank,
    rbind, Reduce, rownames, sapply, setdiff, sort, table, tapply,
    union, unique, unsplit, which.max, which.min

standardGeneric for "do.call" defined from package "BiocGenerics"

function (what, args, quote = FALSE, envir = parent.frame()) 
standardGeneric("do.call")
<bytecode: 0x55827d36e730>
<environment: 0x55827d376e30>
Methods may be defined for arguments: what, args
Use  showMethods("do.call")  for currently available ones.
Function: do.call (package BiocGenerics)
what="ANY"

Method Definition (Class "derivedDefaultMethod"):

function (what, args, quote = FALSE, envir = parent.frame()) 
{
    if (!is.list(args)) 
        stop("second argument must be a list")
    if (quote) 
        args <- lapply(args, enquote)
    .Internal(do.call(what, args, envir))
}
<bytecode: 0x55827d36bbc0>
<environment: namespace:base>

Signatures:
        what 
target  "ANY"
defined "ANY"

BiocGenerics documentation built on April 17, 2021, 6:01 p.m.