[R] Does R have a "const object"?

Martin Morgan mtmorgan at fhcrc.org
Tue Mar 15 19:35:15 CET 2011


On 03/15/2011 11:34 AM, Duncan Murdoch wrote:
> On 15/03/2011 2:23 PM, Uwe Ligges wrote:
>>
>> On 15.03.2011 15:53, xiagao1982 wrote:
>> > Hi, all,
>> >
>> > Does R have a "const object" concept like which is in C++ language?
>> I want to set some data frames as constant to avoid being modified
>> unintentionally. Thanks!
>>
>>
>> Although there is almost never a "No" in R, the best short answer is:
>> "No".
>
> Very nice answer! Achim, this is a fortune candidate if I ever saw one!

but aren't lockBinding / lockEnvironment a reasonable longer answer? Martin

>
> Duncan Murdoch
>
> ______________________________________________
> R-help at r-project.org mailing list
> https://stat.ethz.ch/mailman/listinfo/r-help
> PLEASE do read the posting guide
> http://www.R-project.org/posting-guide.html
> and provide commented, minimal, self-contained, reproducible code.


-- 
Computational Biology
Fred Hutchinson Cancer Research Center
1100 Fairview Ave. N. PO Box 19024 Seattle, WA 98109

Location: M1-B861
Telephone: 206 667-2793



More information about the R-help mailing list