[18726] in s-news-athena
[S] error when using weights in prune.tree
daemon@ATHENA.MIT.EDU (Oudshoorn K.)
Fri Jul 23 11:10:43 1999
Message-Id: <130D4E7F3518D3119C9600A0C9CFBB7AF004@a00677.pg.tno.nl>
From: "Oudshoorn K." <K.Oudshoorn@pg.tno.nl>
To: s-news@wubios.wustl.edu
Date: Fri, 23 Jul 1999 17:04:21 +0200
Mime-Version: 1.0
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Dear S-plussers,
(using S-Plus 4.5, Windows NT)
I am trying to fit a classification tree on the
dataframe data using
the function tree().
When calling tree itself I also use weights (the
vector data$weights) and created the object data.tr .
Next I wanted to prune the tree, so I called
prune.tree(data.tr).
Now an error occurs:
Error in as.double: Cannot coerce mode call to double: data$weights
Dumped
Am I doing something wrong, is it forbidden to use
weights with prune.tree or is there a mistake
concerning weights in prune.tree?
Thanks in advance,
Karin Oudshoorn
-----------------------------
Karin Oudshoorn
department of Statistics
TNO Prevention and Health
Pobox 2215
2301 CE Leiden
THe Netherlands
K.Oudshoorn@pg.tno.nl
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