[Rd] can't load just saved R object "ReadItem: unknown type 65"

Mark W Kimpel mwkimpel at gmail.com
Fri Mar 23 03:40:07 CET 2007

I have run into a problem loading a just saved R object using R-devel. I 
have been saving and loading this particular type of R object for a long 
while and never ran into this problem. I save, then immediately reload 
(to test save) and get "ReadItem: unnknown type 65".

This error is reproducible after logout from server and restart of emacs 
and R.

Below is my output and sessionInfo().


 > setwd("~/Genomics/Experiments.Genomic/BB01/acb.shell")
 > local(save(affy.object.preprocessed, file 
="affy.object.preprocessed.R" ))
 > load("affy.object.preprocessed.R")
Error in load("affy.object.preprocessed.R") :
	ReadItem: unknown type 65, perhaps written by later version of R
 > sessionInfo()
R version 2.5.0 Under development (unstable) (2007-03-11 r40824)


attached base packages:
[1] "splines"   "stats"     "graphics"  "grDevices" "datasets"  "utils"
[7] "tools"     "methods"   "base"

other attached packages:
      multtest    rat2302cdf affycoretools       annaffy        xtable
      "1.13.1"      "1.15.0"       "1.7.8"       "1.7.3"       "1.4-3"
         gcrma   matchprobes       biomaRt         RCurl           XML
       "2.7.3"       "1.7.4"      "1.9.21"       "0.8-0"       "1.6-0"
       GOstats      Category        Matrix       lattice    genefilter
      "2.1.13"      "2.1.20"   "0.9975-11"     "0.14-16"      "1.13.8"
      survival          KEGG          RBGL      annotate            GO
        "2.31"     "1.15.12"      "1.11.4"      "1.13.6"     "1.15.12"
         graph         limma          affy        affyio       Biobase
      "1.13.6"      "2.9.13"     "1.13.14"       "1.3.3"     "1.13.39"
Mark W. Kimpel MD
Department of Psychiatry
Indiana University School of Medicine

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