Yes, especially this time, since the toolchain has been updated. My favourite procedure for this goes like
(pkgs <- .libPaths()) (pkgs.old <- sub("3.4", "3.3", pkgs, fixed=TRUE)) (pkgs.new <- setdiff(list.files(pkgs.old), list.files(pkgs))) Check for sanity(!), then install.packages(pkgs.new). Things may need modification if yor setup involves personalized libraries, multiple repos, etc. Just copying the entire directory followed by update.packages(checkBuilt=TRUE) will overwrite packages from the installation of 3.4 and not all of those are CRAN based. [To tell the truth, I don't usually practice what I preach. I just install the missing packages when it turns out that I need them...] -pd > On 23 Apr 2017, at 05:49 , Roy Mendelssohn - NOAA Federal > <roy.mendelss...@noaa.gov> wrote: > > I keep forgetting. So if I jump from R3.3.3 to R3.4.0 is it necessary (or at > least advisable) to re-install packages? > > Thanks, > > -Roy > > ********************** > "The contents of this message do not reflect any position of the U.S. > Government or NOAA." > ********************** > Roy Mendelssohn > Supervisory Operations Research Analyst > NOAA/NMFS > Environmental Research Division > Southwest Fisheries Science Center > ***Note new street address*** > 110 McAllister Way > Santa Cruz, CA 95060 > Phone: (831)-420-3666 > Fax: (831) 420-3980 > e-mail: roy.mendelss...@noaa.gov www: http://www.pfeg.noaa.gov/ > > "Old age and treachery will overcome youth and skill." > "From those who have been given much, much will be expected" > "the arc of the moral universe is long, but it bends toward justice" -MLK Jr. > > _______________________________________________ > R-SIG-Mac mailing list > R-SIG-Mac@r-project.org > https://stat.ethz.ch/mailman/listinfo/r-sig-mac -- Peter Dalgaard, Professor, Center for Statistics, Copenhagen Business School Solbjerg Plads 3, 2000 Frederiksberg, Denmark Phone: (+45)38153501 Office: A 4.23 Email: pd....@cbs.dk Priv: pda...@gmail.com _______________________________________________ R-SIG-Mac mailing list R-SIG-Mac@r-project.org https://stat.ethz.ch/mailman/listinfo/r-sig-mac