Re: [R] 'all' inconsistent?

From: Seth Falcon <>
Date: Tue 31 Jan 2006 - 01:47:37 EST

On 29 Jan 2006, wrote:

> On Sun, 29 Jan 2006, Elizabeth Purdom wrote:
>> I came across the following behavior, which seems illogical to me.
> What did you expect and why?
>> I don't know if it is a bug or if I'm missing something:
>>> all(logical(0))
>> [1] TRUE
> All the values are true, all none of them.

I thought all the values are false, all none of them, because there aren't any that are true:

[1] FALSE I can see how someone might expect an error, or NA, or FALSE in the
above two cases. It is harder for me to see when all(logical(0)) being TRUE would be useful.


+ seth mailing list PLEASE do read the posting guide! Received on Tue Jan 31 02:03:05 2006

This archive was generated by hypermail 2.1.8 : Fri 03 Mar 2006 - 03:42:15 EST