[R] Naming Convention

[Spencer Graves]

      Also, while any character string is allowed, the use of strings 
that are not legal names limits their utility, especially for the 
columns of a data.frame, which could normally be used in a formula for 
something like "lm" or even more general using "with" or "attach". 

      hope this helps.  spencer graves

Prof Brian Ripley wrote:

> On Thu, 13 Jan 2005, [ISO-8859-1] Romain François wrote:
>
>>
>> Christoph Scherber a écrit :
>>
>>> Dear Reinhold,
>>>
>>> All entries are allowed except "price swap" or "price_swap"
>>
>>
>> As a matter of fact, the syntax price_swap is now allowed (since R 
>> 1.9.1 I think). The rest is a choice issue ... deprends on you.
>
>
> Even "price swap" is allowed, but you will have to work a bit harder, 
> e.g. call data.frame() with check.names=FALSE and quote the name 
> (preferably with backticks) when you want to use it.
>
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