[R] [FORGED] Logical Operators' inconsistent Behavior

[Jeff Newmiller]

FALSE & FALSE -> FALSE
FALSE & TRUE -> FALSE

Why do you need to know what the second value is? It doesn't matter what it is... the answer is FALSE. 
-- 
Sent from my phone. Please excuse my brevity.

On May 19, 2017 5:24:06 AM PDT, "Jérémie Juste" <jeremiejuste at gmail.com> wrote:
>My apologies if I was not clear enough,
>
>TRUE & NA could be either TRUE or FALSE and consequently is NA.
>why is   FALSE & NA = FALSE?  NA could be TRUE or FALSE, so FALSE & NA
>should be NA?
>
>
>On Fri, May 19, 2017 at 2:13 PM, Rolf Turner <r.turner at auckland.ac.nz>
>wrote:
>
>> On 20/05/17 00:01, Jérémie Juste wrote:
>>
>>> Hello,
>>>
>>> Rolf said,
>>>
>>> TRUE & FALSE is FALSE but TRUE & TRUE is TRUE, so TRUE & NA could be
>>> either TRUE or FALSE and consequently is NA.
>>>
>>> OTOH FALSE & (anything) is FALSE so FALSE & NA is FALSE.
>>>
>>>
>>> According to this logic why is
>>>
>>>     FALSE & NA
>>>
>>> [1] FALSE
>>>
>>
>> Huh????
>>
>>
>> cheers,
>>
>> Rolf Turner
>>
>> --
>> Technical Editor ANZJS
>> Department of Statistics
>> University of Auckland
>> Phone: +64-9-373-7599 ext. 88276
>>
>
>
>
>-- 
>Jérémie Juste
>
>	[[alternative HTML version deleted]]
>
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