On 13-04-24 5:46 AM, Liviu Andronic wrote:
Dear all,
I've bumped into the: "Error in loadNamespace(name) : there is no
package called ‘R.utils’" error. I've already read a bit on this (
http://www.cybaea.net/Blogs/Data/A-warning-on-the-R-save-format.html )
but I have a follow-up question.

Given a workspace that automatically loads a package that I don't
really need/want (e.g. ‘R.utils’), how do I identify which object
requires this package to load? I would like to avoid loading ‘R.utils’
every time I open an R session.

That's not easy, because the code in R that triggers that error has no idea of the name of the object it is loading.

You could try a binary search to find out, but it will be tedious:
1. Install R.utils.
2. Load the workspace successfully.
3. Delete half the objects, and save it.
4. Uninstall R.utils, and see if you can load the workspace.

At this point you'll know if there's an object needing R.utils still left or not, and you can repeat the steps until you find a single object that causes the problem. (But it might not be the only one, so deleting it from the original workspace might not solve your problem.)

A better approach is to *never* save and load workspaces unless you know exactly what is in them. Always reply "no" to the question about saving your workspace (or set that as the default). If you accidentally end up with a workspace being loaded, delete it.

Duncan Murdoch


Regards,
Liviu


sessionInfo()
R version 2.15.3 (2013-03-01)
Platform: i686-pc-linux-gnu (32-bit)

locale:
  [1] LC_CTYPE=en_US.UTF-8       LC_NUMERIC=C
LC_TIME=en_US.UTF-8
  [4] LC_COLLATE=en_US.UTF-8     LC_MONETARY=en_US.UTF-8
LC_MESSAGES=en_US.UTF-8
  [7] LC_PAPER=C                 LC_NAME=C
LC_ADDRESS=C
[10] LC_TELEPHONE=C             LC_MEASUREMENT=en_US.UTF-8
LC_IDENTIFICATION=C

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

other attached packages:
  [1] R.utils_1.23.2    R.oo_1.13.0       R.methodsS3_1.4.2
tables_0.7.57     reshape2_1.2.2
  [6] car_2.0-15        nnet_7.3-6        MASS_7.3-23
Hmisc_3.10-1      survival_2.37-2
[11] foreign_0.8-53

loaded via a namespace (and not attached):
[1] cluster_1.14.3   grid_2.15.3      lattice_0.20-13  plyr_1.8
  rstudio_0.97.312
[6] stringr_0.6.2    tools_2.15.3



______________________________________________
R-help@r-project.org mailing list
https://stat.ethz.ch/mailman/listinfo/r-help
PLEASE do read the posting guide http://www.R-project.org/posting-guide.html
and provide commented, minimal, self-contained, reproducible code.

Reply via email to