[R] How to use multiple versions of a R library?

[Uwe Ligges]

lutz.thieme at amd.com wrote:

> Hello everybody,
> 
> is there a possibility to install and use multiple versions of a R library 
> at the same time? 
> A few words regarding the background of this question:
> If I change functions of an already developed package, I have to 
> verify complex functions in a lot of R applications. So it would be useful
> to use different versions of a function/library and switch to the newer 
> function/library application by application to avoid crashes. I know that 
> the library function has an argument "version", but finally I don't know 
> how to install and use different versions at the same time.
> Any ideas and hints are appreciated - thank you in advance!


R CMD INSTALL --help
tells us to use the option
   --with-package-versions
      allow for multiple versions of the same package
when installing the packages.

Uwe Ligges






> 	Kind regards,
> 
> 	Lutz
> 
> 
> 	Lutz Thieme
> 	Product Engineering
> 	AMD Saxony Limited Liability Company & Co. KG
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