kleiweg@let.rug.nl
2003-Sep-30 19:28 UTC
[Rd] dump/source problem with hclust object (PR#4361)
library(mva)
data(USArrests)
hc <- hclust(dist(USArrests), "ave")
plot(hc) # OK
dump(c("hc"), "tst")
rm(hc)
source("tst")
plot(hc) # Error in plot.hclust(hc) : invalid dendrogram input
The same problem occurs with dput/dget
--please do not edit the information below--
Version:
platform = i686-pc-linux-gnu
arch = i686
os = linux-gnu
system = i686, linux-gnu
status major = 1
minor = 7.1
year = 2003
month = 06
day = 16
language = R
Search Path:
.GlobalEnv, package:methods, package:ctest, package:mva,
package:modreg, package:nls, package:ts, Autoloads, package:base
?dump says:
Details:
At present the implementation of `dump' is very incomplete and it
really only works for functions and simple vectors.
[...]
The function `save' is designed to be used for transporting R data
between machines.
So I guess, technically, this is not a bug, nor is your other example. (An
"hclust" object is hardly a simple vector.)
Andy
> -----Original Message-----
> From: kleiweg@let.rug.nl [mailto:kleiweg@let.rug.nl]
> Sent: Tuesday, September 30, 2003 1:29 PM
> To: r-devel@stat.math.ethz.ch
> Cc: R-bugs@biostat.ku.dk
> Subject: [Rd] dump/source problem with hclust object (PR#4361)
>
>
>
>
> library(mva)
> data(USArrests)
> hc <- hclust(dist(USArrests), "ave")
>
> plot(hc) # OK
>
> dump(c("hc"), "tst")
> rm(hc)
> source("tst")
>
> plot(hc) # Error in plot.hclust(hc) :
> invalid dendrogram input
>
>
> The same problem occurs with dput/dget
>
>
>
>
> --please do not edit the information below--
>
> Version:
> platform = i686-pc-linux-gnu
> arch = i686
> os = linux-gnu
> system = i686, linux-gnu
> status > major = 1
> minor = 7.1
> year = 2003
> month = 06
> day = 16
> language = R
>
> Search Path:
> .GlobalEnv, package:methods, package:ctest, package:mva,
> package:modreg, package:nls, package:ts, Autoloads, package:base
>
> ______________________________________________
> R-devel@stat.math.ethz.ch mailing list
> https://www.stat.math.ethz.ch/mailman/listinfo> /r-devel
>
Prof Brian Ripley
2003-Nov-09 14:54 UTC
[Rd] dump/source problem with hclust object (PR#4361)
For the record, this is due to a storage mode problem: the merge component gets restored as double. I've modified plot.hclust to detect that. On Tue, 30 Sep 2003 kleiweg@let.rug.nl wrote:> > > library(mva) > data(USArrests) > hc <- hclust(dist(USArrests), "ave") > > plot(hc) # OK > > dump(c("hc"), "tst") > rm(hc) > source("tst") > > plot(hc) # Error in plot.hclust(hc) : invalid dendrogram input > > > The same problem occurs with dput/dget > > > > > --please do not edit the information below-- > > Version: > platform = i686-pc-linux-gnu > arch = i686 > os = linux-gnu > system = i686, linux-gnu > status > major = 1 > minor = 7.1 > year = 2003 > month = 06 > day = 16 > language = R > > Search Path: > .GlobalEnv, package:methods, package:ctest, package:mva, > package:modreg, package:nls, package:ts, Autoloads, package:base > > ______________________________________________ > R-devel@stat.math.ethz.ch mailing list > https://www.stat.math.ethz.ch/mailman/listinfo/r-devel > >-- Brian D. Ripley, ripley@stats.ox.ac.uk Professor of Applied Statistics, http://www.stats.ox.ac.uk/~ripley/ University of Oxford, Tel: +44 1865 272861 (self) 1 South Parks Road, +44 1865 272866 (PA) Oxford OX1 3TG, UK Fax: +44 1865 272595