Split a vector into multiple columns

Useful for splitting variable names that a combination of multiple variables. Uses type.convert to convert each column to correct type, but will not convert character to factor.

Usage

colsplit(string, pattern, names)

Arguments

string

character vector or factor to split up

pattern

regular expression to split on

names

names for output columns

Examples

x <- c("a_1", "a_2", "b_2", "c_3")
vars <- colsplit(x, "_", c("trt", "time"))
vars
#>   trt time
#> 1   a    1
#> 2   a    2
#> 3   b    2
#> 4   c    3
str(vars)
#> 'data.frame':	4 obs. of  2 variables:
#>  $ trt : chr  "a" "a" "b" "c"
#>  $ time: int  1 2 2 3