[R] "attach" in R corr. to Spus one

[Liaw, Andy]

> From: Frank E Harrell Jr
> 
> Petr Pikal wrote:
> > Hallo
> > 
> > On 9 Jun 2004 at 2:06, Utsav Boobna wrote:
> > 
> > 
> >>Hi,
> >>    I am a newbie to R, just trying to switch from
> >>Splus. I am wondering to know if there is any such
> >>command in R as "attach" in Splus which can be used to
> >>attach the full directory.
> > 
> > 
> > I would recommend you to spent some time going through 
> docummentation and 
> > especially FAQs. 
> > 
> > getwd and setwd for setting the working directory
> > 
> > but in R objects are stored in one file .Rdata.
> 
> I prefer to control which objects are stored, and to use 
> compression, by 
> using save( ) and load( ), rather than using the .Rdata mechanism. 
> save( ) can store one object or an entire series of objects 
> in one .rda 
> file.

I mostly do the same.  For fairly large objects or objects that I do not
want to accidentally alter during a session, I use attach() instead of
load().  One convenience of attach() is that since the objects are not
loaded into .GlobalEnv, I would have a less cluttered .RData even if I do
save the workspace when I q().

Cheers,
Andy

 
> Frank
> 
> > 
> > OTOH in S+ objects are (were - I did not use it since quite 
> a lot time) stored as 
> > separate files.
> > 
> > For attaching objects see
> > 
> > ?attach
> > 
> > Cheers
> > Petr
> > 
> > 
> >>Also, any idea/referrence about, how to load c
> >>functions in R would be highly appreciated.
> >>
> >>Thanks,
> >>Utsav
> >>
> >>______________________________________________
> >>R-help at stat.math.ethz.ch mailing list
> >>https://www.stat.math.ethz.ch/mailman/listinfo/r-help
> >>PLEASE do read the posting guide!
> >>http://www.R-project.org/posting-guide.html
> > 
> > 
> > Petr Pikal
> > petr.pikal at precheza.cz
> > 
> > ______________________________________________
> > R-help at stat.math.ethz.ch mailing list
> > https://www.stat.math.ethz.ch/mailman/listinfo/r-help
> > PLEASE do read the posting guide! 
> http://www.R-project.org/posting-guide.html
> > 
> 
> 
> -- 
> Frank E 
> Harrell Jr   Professor and Chair           School of Medicine
>                       Department of Biostatistics   
> Vanderbilt University
> 
> ______________________________________________
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>