R help - Mar 2011 - Two issues: WEKA code in R // Probability Estimation Tree algorithms

Hi everyone, 

this email basically pursues two distinct main goals. I appreciate any help! 

First of all I was wondering if there is any possibility to get WEKA files
(coded in Java) to run in R respectively RWeka. I first considered if it was
possible with the Weka_interface implemented in RWeka but apparently it is not.
Is there any way?

Secondly I am looking for implementations to produce probabilities via
Probability Estimation Trees. First results can be obtained using RWeka and
other packages in addition but moreover I am looking for advanced algorithms
implemented in R / RWeka.
These include especially m-Estimate and m-Branch for smoothing probabilities,
curtailment of trees, Kernel Density, weights in tree leafs as well as
implementations of specific developed algorithms like Random Decision Tree,
Confusion Tree Factor or Newton Trees for R/RWeka.
Although I am aware that chance for positive replies regarding this matter is
very low I decided to give this a go. In case you can help me out with this
request please feel also free to suggest how I can help you respectively your
organization in return.

Best regards

Patrick
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