R help - Apr 2004 - RPART drawing the tree

Hello,

I am using the RPART library to find patterns in HIV mutations regarding 
drug-resistancy.
My data consists of aminoacid at certain locations and two classes resistant 
and susceptible.

The classification and pruning work fine with Rpart. however there is a 
problem with displaying the data as a tree in the display window.

in the display window the data contain only levels at the splits example: 
(abcde) left (fg) right. but i would like to have the aminoacids displayed. 
how can this be achieved ?

Rob Kamstra

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On Thu, 29 Apr 2004, Rob Kamstra wrote:
> I am using the RPART library to find patterns in HIV mutations regarding 
> drug-resistancy.
> My data consists of aminoacid at certain locations and two classes
resistant
> and susceptible.
> 
> The classification and pruning work fine with Rpart. however there is a 
> problem with displaying the data as a tree in the display window.
> 
> in the display window the data contain only levels at the splits example: 
> (abcde) left (fg) right. but i would like to have the aminoacids displayed.
> how can this be achieved ?
By reading the documentation, as suggested in 
> PLEASE do read the posting guide!
http://www.R-project.org/posting-guide.html
specifically by ?text.rpart, since that has an argument `pretty' to 
control this.

-- 
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