R help - May 2005 - install R packages--sorry last letter that I sent I had an error, this one is the right one

Dear All,
 
When I tried to install R packages I found this error:
> library(survival)
Loading required package: splines
> install.packages("splines")
--- Please select a CRAN mirror for use in this session ---
Warning message:
package splines is in use and will not be installed 

But I just opened R, and haven't used anything yet, how come did it say
"package splines is in use"?
 
Thanks
 
Jia

On Thu, 2005-05-19 at 10:09 -0400, Li, Jia wrote:
> Dear All,
>  
> When I tried to install R packages I found this error:
> > library(survival)
> Loading required package: splines
This is for your information. It is not an error message and is not
asking you to do anything (i.e. it says "loading" not "please
load")
> > install.packages("splines")
> --- Please select a CRAN mirror for use in this session ---
> Warning message:
> package splines is in use and will not be installed 
> 
> But I just opened R, and haven't used anything yet, how come did it say
"package splines is in use"?
Because it was loaded automatically when you loaded the splines package.
Have a look at the search path with 

search()

You have confused *installing* a package - putting it's files on your
disk - with *loading* it - making it's objects and help pages available
for use in an R session.

Martyn

Li, Jia wrote:
> Dear All,
>  
> When I tried to install R packages I found this error:
> 
>>library(survival)
> 
> Loading required package: splines
> 
>>install.packages("splines")
> 
> --- Please select a CRAN mirror for use in this session ---
> Warning message:
> package splines is in use and will not be installed 
> 
> But I just opened R, and haven't used anything yet, how come did it say
"package splines is in use"?
>
library(survival) told you that it loaded the required package 
"splines". So it *is* in use.

Uwe Ligges


> Thanks
>  
> Jia
> 
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On Thu, 19 May 2005, Li, Jia wrote:
> Dear All,
>
> When I tried to install R packages I found this error:
>> library(survival)
> Loading required package: splines
>> install.packages("splines")
> --- Please select a CRAN mirror for use in this session ---
> Warning message:
> package splines is in use and will not be installed
>
> But I just opened R, and haven't used anything yet, how come did it say
> "package splines is in use"?
Package survival uses it, and you did use that  ....

Note that package splines is a standard package, part of the 
distribution.  install.packages() will not find it.

-- 
Brian D. Ripley,                  ripley at stats.ox.ac.uk
Professor of Applied Statistics,  http://www.stats.ox.ac.uk/~ripley/
University of Oxford,             Tel:  +44 1865 272861 (self)
1 South Parks Road,                     +44 1865 272866 (PA)
Oxford OX1 3TG, UK                Fax:  +44 1865 272595