R: Split Concatenated Values into their Corresponding Column...

concat.split.expanded {splitstackshape}

R Documentation

Split Concatenated Values into their Corresponding Column Position

Description

"Expand" concatenated numeric or character values to their relevant position in a data.frame or data.table or create a binary representation of such data.

Usage

cSplit_e(data, split.col, sep = ",", mode = NULL, type = "numeric",
  drop = FALSE, fixed = TRUE, fill = NA)

Arguments

`data`	The source `data.frame` or `data.table`.
`split.col`	The variable that needs to be split (either name or index position).
`sep`	The character separating each value. Can also be a regular expression.
`mode`	Can be either `"binary"` (where presence of a number in a given column is converted to "1") or `"value"` (where the value is retained and not recoded to "1"). Defaults to `"binary"`.
`type`	Can be either `"numeric"` (where the items being split are integers) or `"character"` (where the items being split are character strings). Defaults to `"numeric"`.
`drop`	Logical. Should the original variable be dropped? Defaults to `FALSE`.
`fixed`	Used for `strsplit` for allowing regular expressions to be used.
`fill`	Desired "fill" value. Defaults to `NA`.

Value

A data.frame or a data.table depending on the source input.

Author(s)

Ananda Mahto

Examples

temp <- head(concat.test)
cSplit_e(temp, "Likes")
cSplit_e(temp, 4, ";", fill = 0)

## The old function name still works
concat.split.expanded(temp, "Likes")
concat.split.expanded(temp, 4, ";", fill = 0)
concat.split.expanded(temp, 4, ";", mode = "value", drop = TRUE)
concat.split.expanded(temp, "Siblings", type = "character", drop = TRUE)

[Package splitstackshape version 1.4.2 Index]