That's most helpful. Thank you very much for your time.
Best regards,
Maria
On Tue Oct 18 17:18 , Prof Brian Ripley <[EMAIL PROTECTED]> se nt:
On Tue, 18 Oct 2005, > Hi there,
>
> I am growing classification trees using the 'tree' p add-on to
R.
>
> I would like to convert the 'R' output to the SAS fo by Salford
Systems' commercial CART software in order to interfac e with some
> other software.
>
> My question is:
> How can I parse the R tree data structure in order t tree
> structure? The 'tree' class has a member '$frame' wh the
> splits at each node, but as far as I can see does no the
> daughter nodes. Is this information accessible throu interface
to
> class 'tree' or do I need to dive into the C code?
The daughter nodes of n are 2n and 2n+1. The print method,
print.tree, is < parse the tree (and you can see the pattern of
the numbers from its result).
--
Brian D. Ripley, [EMAIL PROTECTED]
Professor of Applied Statistics, [2]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
References
1. 3D"javascript:top.opencompose('[EMAIL PROTECTED] 2.
file://localhost/tmp/3D"parse.pl?redirect=http%3A%2F%
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