[R] number of rules

[Gabor Grothendieck]

Here is  a kludge:

> fm <- JRip(Species ~., iris)
> as.numeric(sub(".*:", "", grep("Number of Rules", capture.output(fm), value = TRUE)))
[1] 4


On Mon, Apr 26, 2010 at 7:23 AM, fascob <samtodor at yahoo.com> wrote:
>
> Hello,
>
> I have
>> JRip(Species ~ ., data = iris)
> JRIP rules:
> ===========
>
> (Sepal.Width <= 2.9) and (Petal.Width <= 1.6) => Species=versicolor
> (39.0/5.0)
> (Petal.Length >= 4.1) and (Petal.Width <= 1.7) => Species=versicolor
> (17.0/2.0)
> (Petal.Length >= 4.8) => Species=virginica (46.0/1.0)
>  => Species=setosa (48.0/0.0)
>
> Number of Rules : 4
>
>
> and I will work with the number of rules.
> How can I get the number of rule? Where can I find it?
>
> Regards,
>
>
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