str_split_twice: Extract numeric values from string.
Description
The function splits any character string at each tab and space and returns
all (min_only = FALSE) or only the first (min_only = T) numeric value found in the string.
Usage
str_split_twice(char, min_only = TRUE)
Arguments
char
Character string.
min_only
Logical specifying if only the first numeric value (TRUE) or
all numeric values (FALSE) should be returned. Default is TRUE.