This version finishes first stage experiment.
This version needs to be exammed with several points.
1. MMRF change for to while. The problem of for is it will not select
feature which has been skipped in last stage.
2. there is some problems at the outlier selection process. ex. 42
outliers select from preSeq drug_ingredient_only.csv does not exclude
patient who is not been used for constructing sequence patterns.
3. Need to be reorganized about the main point and need to be clear about
each submodule.