[R] sweave and post "rpart"
Prof Brian Ripley
ripley at stats.ox.ac.uk
Sat Aug 21 12:22:52 CEST 2004
On Sat, 21 Aug 2004, Christian Schulz wrote:
> have anybody positive experience how
> it is possible get the post output from a
> rpart-object in a large sweave file or is only the
> less nicely plot function instead of post possible???
> post(dtreeEB, title="Tree",digits=getOption("digits") - 0,use.n=TRUE)
> (1) if the rpart object result contain only the root node, i get this
That's not a tree so an error is probably correct if not so unfriendly a
one. Perhaps you would like to submit a patch to the *authors*, cc the
> Error: chunk 21
> Error in if (is.leaf[lson]) left <- list(left = x[lson], right = x[lson], :
> missing value where TRUE/FALSE needed
> (2) if the rpart object contains further nodes sweave finished fine, but
> the plot-part contains no tree and "corupted" the tex-document, so
> a tex2pdf isn't possible.
post.rpart() does not produce graphics output on the open device.
If you trouble to read its help page, you will see the solution in the
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 272860 (secr)
Oxford OX1 3TG, UK Fax: +44 1865 272595
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