[R] incompatibilities between 0.90 and 0.99?

[Ramon Diaz-Uriarte]

Thank you very much to B. Ripley, P. Malewski and M. Wiener; they all pointed
out to NEWS (reproduced below). I should have read that first. Sorry
for the dumb question.

Ramon

On Tue, 22 Feb 2000, you wrote:
> On Mon, 21 Feb 2000, Ramon Diaz-Uriarte wrote:
> 
> > Maybe this is dumb, but I seem to be having problems reading a file saved in R
> > v. 0.99 into  R 0.90.1 (in a different machine).  
> > 
> > I did 
> > 
> > >save(test1, file="test1.RData")
> > 
> > then I tried to read that data file in R 0.90.1:
> > 
> > >load("test1.RData")
> > Error in load("test1.RData") : restore file corrupted -- no data loaded
> > 
> > More info:
> > - both machines are running Linux; 
> > - things work the other way around (i.e., use save in 0.90.1 and load in 0.99); 
> > - things do not improve if I save as ascii;
> > - I get the problem even with a simple vector;
> > - (Things work, though, if I save the data frame with write.table, and then
> > use read.table).
> 
>     o   The format for save/load has been changed. Workspaces and
>         objects saved in earlier versions can be loaded into this
>         version, but not conversely. Use save() or save.image() with
>         argument oldstyle=TRUE to save in the old format if you need to.
> 
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