[R] install R packages--sorry last letter that I sent I had an error, this one is the right one

[Uwe Ligges]

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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