[R] VCOV Source Code

[Murray Cooper]

Mostly I am interested in using R for statistics.
I am also interested in being able to look at source code.
I hope to be able to write extensions.
I tried the suggestion below but was unable to access vcov.lm.

> methods(vcov)
[1] vcov.Arima* vcov.glm*   vcov.lm*    vcov.mlm*   vcov.nls*

   Non-visible functions are asterisked
> stats::vcov.lm
Error: 'vcov.lm' is not an exported object from 'namespace:stats'
>

I am currently using version 2.7.2 on XP.

Any suggestions on how to proceed next?

Thank You,

Murray M Cooper
Richland Statistics
9800 N 24th St
Richland, MI, USA 49083
Mail: richstat at earthlink.net

----- Original Message ----- 
From: "Carlos J. Gil Bellosta" <cgb at datanalytics.com>
To: "Yang Wan" <ywan at CFR.MsState.Edu>
Cc: <r-help at r-project.org>
Sent: Thursday, January 08, 2009 4:44 AM
Subject: Re: [R] VCOV Source Code


> Hello,
>
> You can do
>
> stats:::vcov.lm
>
> to see the source code for that particular method. In order to see which
> are the methods supported by vcov, write
>
> methods("vcov")
>
> Best regards,
>
> Carlos J. Gil Bellosta
> http://www.datanalytics.com
>
>
> On Wed, 2009-01-07 at 21:37 -0600, Yang Wan wrote:
>> Dear R Help,
>>
>>
>>
>> I wonder the way to show the source code of [vcov] command.  Usually, it
>> can show the source code after input the command and enter. But for
>> [vcov], it shows
>>
>>
>>
>> function (object, ...)
>>
>> UseMethod("vcov")
>>
>> <environment: namespace:stats>
>>
>>
>>
>> I appreciate for your help.  Best wishes.
>>
>>
>>
>> Christina
>>
>>
>> [[alternative HTML version deleted]]
>>
>> ______________________________________________
>> 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.
>
> ______________________________________________
> 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.
>