[Rd] plot(SOM) segfaults (PR#7157)

[Prof Brian Ripley]

It is reasonable to expect plot to work for any arbitrary function, or
alternatively for any function to work with this sort of abuse?

If the latter, this is a bug report on class and was sent to the wrong 
place (see the FAQ).

If the former, plot.function and curve do no checking, but what could they 
reasonably do?

On Tue, 10 Aug 2004 david.meyer at wu-wien.ac.at wrote:

> 
> library(class)
> plot(SOM)
> 
> segfaults in curve() at the line:
> 
>  y <- eval(expr, envir = list(x = x), enclos = parent.frame())
> 
> at least since R version 1.8.1.
> 
> Version:
>  platform = i686-pc-linux-gnu
>  arch = i686
>  os = linux-gnu
>  system = i686, linux-gnu
>  status = Under development (unstable)
>  major = 2
>  minor = 0.0
>  year = 2004
>  month = 07
>  day = 27
>  language = R
> 
> Search Path:
>  .GlobalEnv, package:class, package:methods, package:stats,
> package:graphics, package:utils, Autoloads, package:base
> 
> 

-- 
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