This script is for my master's graduation paper. Besides my teacher Prof. Ching-chiang Yeh , Prof. Fengyi Lin and me used this scrip to analyze corperation credit rating by algorithem of random forest (Decision tree) . In 2012, our research has been received and published on Knowledge-Based system .
if you are interested in how to combine with data anaylsis and coperation credit rating prediction, you can access to this link -> http://dl.acm.org/citation.cfm?id=2240708