[R] Problem with package sem

[Uwe Ligges]

Gang Chen wrote:
> Hi experts,
> 
> I just started to learn R today, and tried to work with an add-on  
> package sem. I have a version of 2.3.1 on MacOS X 10.4.6 with sem put  
> under /Library/Frameworks/R.framework/Versions/2.3/Resources/library
> 
> However when I typed
> 
> library(sem)
> 
> the following error showed up:
> 
> Error in library(sem) : 'sem' is not a valid package -- installed <  
> 2.0.0?


Please read the R Installation and Administration manual on how to 
install packages (e.g. with R CMD INTALL in the OS' console or 
install.packages() in R)

Uwe Ligges


> Why is this?
> 
> Thank you,
> Gang Chen
> 
> 
> 	[[alternative HTML version deleted]]
> 
> ______________________________________________
> R-help at stat.math.ethz.ch mailing list
> https://stat.ethz.ch/mailman/listinfo/r-help
> PLEASE do read the posting guide! http://www.R-project.org/posting-guide.html