Displaying 2 results from an estimated 2 matches for "pabau".
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2003 Dec 19
1
Question re labels in r-part (continuation of a thread from a while back)
...like the labels to be on the original metric, but label in text.rpart
requires a "column name of x$frame", and the original DV is not on that
frame.
So, I tried the following:
{create the tree}
tr.totpart <- rpart(log(totpart +1) ~ sexfact + age + windle +
eabused
+ as.factor(pabau) + positive + controlling + lenient +
druguse.ever
+ anycsw,
xval = 10, cp = 0.000000001, data = duhray)
{prune the tree}
tr.totpart.pruned <- prune (tr.totpart, cp = .02)
{ad the original metric to the frame}
meanpart <- exp(tr.totpart.pruned$frame$yval)-1
tr.totpart.pruned$f...
2003 Jul 21
0
Changing the labels on a regression tree (repeat post - with added clarity)
Hello
I posted a very similar question last week, but the responses I
received indicated that my post was unclear....
I have a regression tree created in rpart with
tr.logypsx <- rpart(log(YPSX + 1)
~AGE+drugfact+sexfact+as.numeric(OBSX) +WINDLE + EABUSED + PABAU +
positive.par + control.par + lenient.par, xval = 10, method = 'anova',
cp = 0.0001, data = duhray2)
and then
tr.logypsx.pruned <- prune(tr.logypsx, cp = .012)
The labels at the nodes are, naturally enough, the dependent variable
[log(YPSX + 1)]. This DV is better than YPSX becau...