[R] Corrupt R installation?

[David Winsemius]

On May 10, 2010, at 4:46 PM, Ralf B wrote:

> I installed the lattice package, and got an error that R was not able
> to remove the previous version of lattice. Now my installation seems
> to be currupt, even affecting other packages. I am getting this error
> when loading TTR:
>
>> library(TTR)
> Loading required package: xts
> Loading required package: zoo
> Error in loadNamespace(i, c(lib.loc, .libPaths())) :
>  there is no package called 'lattice'
> In addition: Warning messages:
> 1: package 'TTR' was built under R version 2.10.1
> 2: package 'xts' was built under R version 2.10.1
> 3: package 'zoo' was built under R version 2.10.1
> Error: package 'zoo' could not be loaded
>
> My question now is, is there a way to manually remove lattice (or
> whats left from it) ? Or do I have to go through the process of
> completely re-installing? What do you guys do to prevent such a
> situation - is there an easy way to secure a R installation?

You could try simply deleting the .Rdta file that is perhaps invisible  
to your file manager software. on whatever OS you are using.

-- 
David Winsemius, MD
West Hartford, CT