Shorten strings to a given number of characters
Value
A vector of strings of the same length as the input, with each string shortened to the desired length
Strings with more characters than nchar will be shortened.
Examples
inputStrs <- c("abc", "abcd", "abcde", NA)
shortenStr(inputStrs, nchar=4)
#> [1] "abc" "abcd" "abcd..." NA
## expected outcome: abc, abcd, abcd..., NA