I am still running 2.9.0 and came across a package that was built with 2.9.1. I got a warning upon loading the package.
I tried to launch a function from such a package. It seems to hang up. I can't believe it takes forever.
I am resolved to upgrade my R version to the newest one. But on a Windows box I do not know how to unistall the current version 
in advance of installing the new one. 
On a Linux system I iinstaledl the new version without removing the previous one first and ended up with a messy situation.
Can you please help ?
Thank you in advance.
Maura 


tutti i telefonini TIM!


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