charMat: Create a Binary Matrix from a List of Character Values

In splitstackshape: Stack and Reshape Datasets After Splitting Concatenated Values

Create a Binary Matrix from a List of Character Values

Description

Create a binary matrix from a list of character values

Usage

charMat(listOfValues, fill = NA, mode = "binary")

Arguments

listOfValues	A list of input values to be inserted in a matrix.
fill	The initializing fill value for the empty matrix.
mode	Either "binary" or "value". Defaults to "binary".

Details

This is primarily a helper function for the concat.split() function when creating the "expanded" structure. The input is anticipated to be a list of values obtained using base::strsplit().

Value

A matrix.

Author(s)

Ananda Mahto

See Also

base::strsplit(), numMat().

Examples

invec <- c("rock,electro","electro","rock,jazz")
A <- strsplit(invec, ",")
splitstackshape:::charMat(A)
splitstackshape:::charMat(A, 0)
splitstackshape:::charMat(A, mode = "value")

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