multisplit: Split elements belonging to multiple groups

In IRanges: Foundation of integer range manipulation in Bioconductor

Description

This is like split, except elements can belong to multiple groups, in which case they are repeated to appear in multiple elements of the return value.

Usage

multisplit(x, f)

Arguments

x	The object to split, like a vector.
f	A list-like object of vectors, the same length as x, where each element indicates the groups to which each element of x belongs.

Value

A list-like object, with an element for each unique value in the unlisted f, containing the elements in x where the corresponding element in f contained that value. Just try it.

Author(s)

Michael Lawrence

Examples

multisplit(1:3, list(letters[1:2], letters[2:3], letters[2:4]))

Example output

Loading required package: BiocGenerics
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, cbind, colMeans, colSums, colnames, 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

Loading required package: S4Vectors
Loading required package: stats4

Attaching package: 'S4Vectors'

The following object is masked from 'package:base':

    expand.grid

IntegerList of length 4
[["a"]] 1
[["b"]] 1 2 3
[["c"]] 2 3
[["d"]] 3

IRanges documentation built on Dec. 14, 2020, 2 a.m.