[R] R: print and ctree
jwiley.psych at gmail.com
Sun Jul 31 17:20:57 CEST 2011
It *looks* to me like those are just 1 - criterion (from what is
printed). I did not see a nice way to extract them manually. Here is
what I did:
airq <- subset(airquality, !is.na(Ozone))
airct <- ctree(Ozone ~ ., data = airq,
controls = ctree_control(maxsurrogate = 3))
round(1 - airct at tree$criterion$maxcriterion, 3)
round(1 - airct at tree$left$criterion$maxcriterion, 3)
round(1 - airct at tree$left$right$criterion$maxcriterion, 3)
round(1 - airct at tree$right$criterion$maxcriterion, 3)
I am not too familiar with the package so take what I said with a
grain or block of salt.
On Sun, Jul 31, 2011 at 6:40 AM, <seanstclair at verizon.net> wrote:
> I have run the ctree function, and my dependent variable is broken into 3
> categories: low cost, moderate cost and high cost.
> When i plot the results (eg. using plot(test.ct)), the plot shows, at the
> very bottom of each node, the probability of falling into each cost
> When i print the actual results (eg. using print(test.ct)), i get all of the
> backup information, but i do not get the probability of falling into each
> cost category.
> Is there a way i can get these probabilities to show up on the actual
> summary of results using print function?
> R-help at r-project.org mailing list
> PLEASE do read the posting guide http://www.R-project.org/posting-guide.html
> and provide commented, minimal, self-contained, reproducible code.
Ph.D. Student, Health Psychology
Programmer Analyst II, ATS Statistical Consulting Group
University of California, Los Angeles
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