On 25/10/2010 3:09 PM, Carson, John wrote: > When I call > > setRepositories() > > I get an error > > Error in aa[aa == ""]<- repos[new][aa == ""] : > NAs are not allowed in subscripted assignments > > Does anyone know how to fix this? What version of R are you using? What does getOption("repos") give? Duncan Murdoch