[R] issue with nzchar() ?

[Liviu Andronic]

On Mon, Aug 6, 2012 at 4:48 PM, Liviu Andronic <landronimirc at gmail.com> wrote:
> string, something that I find strange. At best NA is the equivalent of
> an empty string. In this sense, if you Hmisc::describe() the vector
> you get, as I would expect, that in the context of character vectors
> NA and '' values are considered together:
>

By the way, same question holds for nchar(): Should NA values be
reported as 2-char strings, or as 0-char empty/missing values?
> x <- c(letters, NA, '')
> nchar(x)
 [1] 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 2 0


Liviu