[Rd] dump/source problem with hclust object (PR#4361)

[Prof Brian Ripley]

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 at 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 at stat.math.ethz.ch mailing list
> https://www.stat.math.ethz.ch/mailman/listinfo/r-devel
> 
> 

-- 
Brian D. Ripley,                  ripley at 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