Re: head with non integer n returns confusing output
> `head()` returns a problematic output when a character is fed to its `n`
> this can lead to an unexpected and inconsistent result.
> I would suggest either using `as.integer` consistently on the input, or
> having a consistent error for all character input.
I use the head() and tail() functions, a lot.
I agree that the argument checking and argument handling is not as good as
it could be.