listCol_l: Unlist a Column Stored as a List

In splitstackshape: Stack and Reshape Datasets After Splitting Concatenated Values

Unlist a Column Stored as a List

Description

Unlists a column stored as a list into a long form.

Usage

listCol_l(inDT, listcol, drop = TRUE)

Arguments

inDT	The input dataset.
listcol	The name of the column stored as a list.
drop	Logical. Should the original column be dropped? Defaults to TRUE.

Value

A data.table.

Author(s)

Ananda Mahto

See Also

listCol_w to flatten a list column into a "wide" format.

Examples

dat <- data.frame(A = 1:3, B = I(list(c(1, 2), c(1, 3, 5), c(4))))
listCol_l(dat, "B")

splitstackshape documentation built on March 21, 2026, 9:08 a.m.