Finish the Main.m program and fix a sematic bug.
Fix the sematic erroror:
change ceil(1/num_parts) to num_parts
	modified:   Main.m
Fix the checking condition of input.
The input records should be at least greater than two, so as to be divided
into testing and training parts.
	modified:   DivideTrainTestDataNew.m
Improve the Main.m program:
1. Check if the number of abnormal records is greater than 2, before
separating out the testing data.
2. Add the codes for displaying the analyzing results.
	modified:   Main.m