Hi all
I have problems in accessing a mer object called model.01 from a
workspace that was created with R 2.8.1 and saved with save into an
.RData file (on Windows XP or Ubuntu 8.10, don't remember anymore).
Now I want to open it in R 2.9.0 on Ubuntu 8.10. I use
# load workspace
load("name.RData")
which seems to work:
ls() # all objects in there
[1] "all" "all.dd" "model.01" "model.sorter"
It also recognizes the class of model.01:
> class(model.01)
[1] "mer"
attr(,"package")
[1] "lme4"
But when I want to print it or look at its structure:
print(model.01)
Error in slot(value, what) :
no slot of name "Xst" for this object of class "mer"
> str(model.01)
Error in FUN(c("env", "nlmodel", "frame", "call", "flist", "X", "Xst", :
no slot of name "Xst" for this object of class "mer"
Any idea what to do?
> R.version
platform i486-pc-linux-gnu
arch i486
os linux-gnu
system i486, linux-gnu
status
major 2
minor 9.0
year 2009
month 04
day 17
svn rev 48333
language R
version.string R version 2.9.0 (2009-04-17)
> library(help=lme4)
Package: lme4
Version: 0.999375-28
Date: 2008-12-13
Thanks,
RZ
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