[R] The use of F for False and T for True
ggrothendieck at gmail.com
Mon Nov 17 20:20:19 CET 2008
!!0 # FALSE
!!1 # TRUE
Although its one more char, its very easy to press ! twice and when you
look at it its more obvious since 0 is associated with FALSE and
1 with TRUE.
On Mon, Nov 17, 2008 at 12:42 PM, Henrik Bengtsson <hb at stat.berkeley.edu> wrote:
> To save my fingers and still being on the safe side, I always do:
>  TRUE
>  FALSE
> ;) ...still hackable though.
> On Mon, Nov 17, 2008 at 5:25 AM, Duncan Murdoch <murdoch at stats.uwo.ca> wrote:
>> On 17/11/2008 8:03 AM, hadley wickham wrote:
>>> On Sun, Nov 16, 2008 at 7:41 PM, Simon Blomberg <s.blomberg1 at uq.edu.au>
>>>> It is better programming practice to use FALSE for false and TRUE for
>>>> true, and not F and T. This is because it is quite legal to do this:
>>>> T <- FALSE
>>>> F <- TRUE
>>> It may be better programming practice, but is it better interactive
>>> data analysis practice? R isn't just a programming language, and
>>> there are lots of good reasons to provide shortcuts that reduce
>>> typing. It's very easy to forget that most people can't touch type at
>>> a decent speed, and every key press less helps them get their ideas
>>> from their head to the computer faster.
>> That would be an argument for T and F being the reserved words (as I think
>> they are in S-PLUS). But since it's so easy to use T or F as a variable,
>> the problems caused by using them as TRUE or FALSE are not negligible --
>> look at the original question in this thread, which was likely caused by
>> using F as a variable.
>> Duncan Murdoch
>> R-help at r-project.org mailing list
>> PLEASE do read the posting guide http://www.R-project.org/posting-guide.html
>> and provide commented, minimal, self-contained, reproducible code.
> R-help at r-project.org mailing list
> PLEASE do read the posting guide http://www.R-project.org/posting-guide.html
> and provide commented, minimal, self-contained, reproducible code.
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