Using Poisson distribution in RapidMiner

Hey there,

i'm writing my masterthesis about predictive analytics and text mining. So i got in contact with RapidMiner. Starting with this tool and trying different things out was quite easy. Now i would like to use POISSON distribution to calculate probabilities of different events. But i couldn't find any operator that supports Poisson distribution. Is there one?

So i started to install an extension pack for R and thought i could do this job in an R script. Unfortunatelly R or Python is not supported in RapidMiner 7.1? Every startup i get an error message.

Any ideas or hints how i could do the Poisson calculations?

My current workaround is extracting the values i need using rapidminer. Export them into an excel file and do the poisson manually with an excel function. Then retrieve those result in an other process. But I could imagine that there's a more handy way to do this.

Thanks.

Kind regards from germany