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Have anybody used Decision Tree in Python or C++? (or written their own decision tree implementation in Python or C++)? My goal is to run decision tree on 8 million obs as training set and score 7 million in test set. I am testing 'rpart' package on a 64-bit-Linux + 64-bit-R environment. But it seems that rpart is either not stable or running out of memory very quickly. (Is it

Hi all, I am looking for a good book that covers Machine Learning as a whole and provides examples in R while not over focusing on the math (such as in 'Elements of Statistical Learning') but rather on descriptions and examples. I am relatively new to R and ML and, while solving problems with R, I want to learn the main concepts, techniques and problem categories. Can anybody here

Hi All, Can anyone please suggest me from where should I start to learn about 'how to connect to access db' ? How if someone has some written code and I can go over that to understand and make necessary changes... any help would be highly appreciated, -- Xin Ge. [[alternative HTML version deleted]]

Hello How do you compare R to SAS in terms of speed and management of large datasets? What about Revolution R? I've seen on their site, they claim that Revolution R is much faster than R and it's multithread... Can you really notice the difference?. What dissadvantage does it have? I think it's based on R 2.10. but R already issued the version 2.12 Regards What alternative