as.data.frame: Coerce to a data frame

In BiocGenerics: S4 generic functions used in Bioconductor

Description

Generic function to coerce to a data frame, if possible.

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

Usage

as.data.frame(x, row.names=NULL, optional=FALSE, ...)

Arguments

x	The object to coerce.
row.names, optional, ...	See ?base::as.data.frame for a description of these arguments.

Value

An ordinary data frame.

See ?base::as.data.frame for the value returned by the default method.

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

See Also

• base::as.data.frame for the default as.data.frame method.

• toTable for an alternative to as.data.frame.

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

• selectMethod for getting the definition of a specific method.

• as.data.frame,DataFrame-method in the S4Vectors package, and as.data.frame,IntegerRanges-method in the IRanges package, for examples of specific as.data.frame methods (defined for DataFrame and IntegerRanges objects, respectively).

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

Examples

as.data.frame  # note the dispatch on the 'x' arg only
showMethods("as.data.frame")
selectMethod("as.data.frame", "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':

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

standardGeneric for "as.data.frame" defined from package "BiocGenerics"

function (x, row.names = NULL, optional = FALSE, ...) 
standardGeneric("as.data.frame")
<environment: 0x2237238>
Methods may be defined for arguments: x
Use  showMethods("as.data.frame")  for currently available ones.
Function: as.data.frame (package BiocGenerics)
x="ANY"

Method Definition (Class "derivedDefaultMethod"):

function (x, row.names = NULL, optional = FALSE, ...) 
{
    if (is.null(x)) 
        return(as.data.frame(list()))
    UseMethod("as.data.frame")
}
<bytecode: 0x22477f8>
<environment: namespace:base>

Signatures:
        x    
target  "ANY"
defined "ANY"

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