"how to train a couple of classification models in a loop"
At present, I heavily use Rapidminer to train classification model. Generally, the input is a collection of documents having been put into a folder. In other words, for each input, I have to run the workflow once. If I have a couple of input folders, how can I run this training process in a loop and save the built model with different names. Are there any examples that I can follow? Thanks.