update.packages() after updating R version [RESOLVED]
On Sat, 26 May 2018, Duncan Murdoch wrote:
I think you want update.packages(ask = FALSE, checkBuilt = TRUE) to automatically update all packages and their dependencies. With the default checkBuilt=FALSE, R just sees whether a dependency is a high enough version number. But packages installed under R x.y.z are not usable in R x.y+1.w.
Duncan, Mea culpa! I knew of the 'ask' option but for some reason the 'checkBuilt' option did not register when I scanned the list. Yes, using the two is doing the job. There are many packages from earlier versions now being brought current. Many thanks, Rich