Algunos paquetes R no se actualizan con update.packages ()
SeleccionandoPackages->Update packages... dio
> update.packages(ask='graphics',checkBuilt=TRUE)
--- Please select a CRAN mirror for use in this session ---
Warning: package 'foreign' in library 'C:/Program Files/R/R-3.0.2/library' will not be updated
Warning: package 'lattice' in library 'C:/Program Files/R/R-3.0.2/library' will not be updated
Warning: package 'Matrix' in library 'C:/Program Files/R/R-3.0.2/library' will not be updated
Warning: package 'mgcv' in library 'C:/Program Files/R/R-3.0.2/library' will not be updated
Warning: package 'nlme' in library 'C:/Program Files/R/R-3.0.2/library' will not be updated
Warning: package 'rpart' in library 'C:/Program Files/R/R-3.0.2/library' will not be updated
Ejecuté el acceso directo de R en el menú de inicio "como administrador" y obtuve los mismos resultados.
La versión R es 3.0.2.