[R] make.groups function of laatice is not working?

[David Winsemius]

On Apr 12, 2010, at 2:20 AM, newbie_2010 wrote:

>
>> require(lattice)
> Loading required package: lattice
> Error in library(package, lib.loc = lib.loc, character.only = TRUE,
> logical.return = TRUE,  :
>  'lattice' is not a valid installed package
>> library(lattice)
> Error in library(lattice) : 'lattice' is not a valid installed package

You will need to provide the information described in the Posting  
Guide as well as copying the commands used to make the failed  
installation.

-- 
David.
>>
>
>
> I got these errors after trying them
> -- 
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