ggplot or dcast crash R for some users but not others

[Peter Ellis (Wellington)]

Hi

After an upgrade from 2.14.2 to R 2.15.2 over the weekend for most (but not all) of our users R crashes when dcast() or ggplot() is run, regardless of how simple the example given to it. Below is a complete session after opening R with an empty workspace, attaching no libraries other than reshape2. Where should we start in troubleshooting this? What might be different in the set up for some users that causes this behaviour? The installation has been packaged so everyone should have had installed the same way, and the computers are all nearly identical.

Thanks for any pointers for where to look.

PE


###############
# Session 1

.libPaths("P:/r/libraries")
library(ggplot2)

# creates an immediate crash:
example(ggplot)

##################
# Session 2
.libPaths("P:/r/libraries")
library(reshape2)
sessionInfo()

# following runs ok:
names(airquality) <- tolower(names(airquality))
aqm <- melt(airquality, id=c("month", "day"), na.rm=TRUE)
acast(aqm, day ~ month ~ variable) # reshape2 version

# Creates a crash:
dcast(aqm, month ~ variable, mean, margins = c("month", "variable"))

Here is the session info:


> sessionInfo()
R version 2.15.2 (2012-10-26)
Platform: x86_64-w64-mingw32/x64 (64-bit)


locale:
[1] LC_COLLATE=English_New Zealand.1252 LC_CTYPE=English_New Zealand.1252
[3] LC_MONETARY=English_New Zealand.1252 LC_NUMERIC=C
[5] LC_TIME=English_New Zealand.1252


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


other attached packages:
[1] reshape2_1.2.2


loaded via a namespace (and not attached):
[1] plyr_1.8 stringr_0.6

Peter Ellis 


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[Peter Ellis (Wellington)]

Sorry should also have included:

> Sys.info()
sysname release version nodename machine
"Windows" "7 x64" "build 7600" "DH-AUD81008DX" "x86-64"
login user effective_user
"ellisp" "ellisp" "ellisp"



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