[R] Checking if a library is loaded or not

[Peter Dalgaard BSA]

Mark Myatt <mark at myatt.demon.co.uk> writes:

> How do I check if a library has already been loaded and then load it if
> required?

require(pkgname)

PS: The terminology is that we have a library of packages, so it is
packages that get loaded, not libraries.

-- 
   O__  ---- Peter Dalgaard             Blegdamsvej 3  
  c/ /'_ --- Dept. of Biostatistics     2200 Cph. N   
 (*) \(*) -- University of Copenhagen   Denmark      Ph: (+45) 35327918
~~~~~~~~~~ - (p.dalgaard at biostat.ku.dk)             FAX: (+45) 35327907
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