[R] C50 package in R

Hi All, I am trying to use the C50 package to build classification trees in R. Unfortunately there is not enought documentation around its use. Can anyone explain to me - how to prune the decision trees? Regards, Indrajit [[alternative HTML version deleted]]

Re: [R] Make R 3.0 open .RData files

Another thing that you can try is changing the Path. Make sure the PATH environment variable has the path to R 3.0 before R 2.15.3 in the string. Regards, Indrajit On Thu, 25 Apr 2013 22:10:52 +0530 wrote >a) See FAQ 2.17 b) Methods for configuring operating systems are off topic

Re: [R] C50 package in R

Quinlan asked us to call the results of that function as "J48" and not "C4.5". Using C5.0 with a single tree is much similar to C4.5 than J48. - the differences between model trees and Cubist are also substantial and largely undocumented. HTH, Max   On T

Re: [R] Read big data (>3G ) methods ?

We recently benchmarked our R Server (Intel Xeon 2.2GHz, 128 GB RAM, Centos 6.2 running R 2.15.2 64bit) where we tested various read / write / data manipulation times. A 6 GB dataset took around 15 minutes to read without colClassses. The dataset had around 10 million rows and 14 columns. Wer