[R] Column renaming

[Erik Iverson]

I agree there.  I believe the same effect can be achieved with 
'transform'.

transform(X, sue = bob, bob = NULL)

Perhaps there are performance reasons for using the names() <- value 
approach for very large data.frames?

Duncan Murdoch wrote:
> On 5/5/2008 10:48 AM, Chip Barnaby wrote:
>> Dear all,
>>
>> Is there a less cumbersome way to rename a column by name (as opposed 
>> to index) than --
>>
>> names( X)[ names[ X] == "bob"]<-"sue"
> 
> I find this clearer:
> 
> X$sue <- X$bob
> X$bob <- NULL
> 
> Duncan Murdoch
> 
>>
>> ?
>>
>> A semi-related question: how does one get the index of a column by 
>> name, something along the lines of col.index( X, "sue") ?
>>
>>
>> Chip Barnaby
>>
>>
>> ---------------------------------------------------------
>> Chip Barnaby                   cbarnaby at wrightsoft.com
>> Vice President of Research
>> Wrightsoft Corp.               781-862-8719 x118 voice
>> 131 Hartwell Ave               781-861-2058 fax
>> Lexington, MA 02421         www.wrightsoft.com
>>
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> 
> ______________________________________________
> 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.