str_dt_col_combine {textTools} | R Documentation |
Combine columns of a data.table into a list in a new column, wraps list(unlist(c(...)))
Description
Combine columns of a data.table into a list in a new column, wraps list(unlist(c(...)))
Usage
str_dt_col_combine(...)
Arguments
... |
Unquoted column names of a data.table. |
Value
A list, with columns combined into a vector if grouped properly
Examples
as.data.table(
list(
col1 = c(
"a",
"b"
),
col2 = c(
tolower("The dog is nice because it picked up the newspaper."),
tolower("The dog is extremely nice because it does the dishes.")
),
col3 = c(
"test 1",
"test 2"
)
)
)[, col4 := .(str_dt_col_combine(col2, col3)), col1]
[Package textTools version 0.1.0 Index]