this mirrors selena's case. Current master seems to behave differently. Uses dataset in /home/0xdiag/datasets
checks classification error is zero, and the number of skipped rows is fixed (non-zero) for a given number of trees. iterates with random node for 3 jvm test.
mirrors selena's case. allyears2k.csv in /home/0xdiag/datasets, checks classification error = 0 and rows_skipped (non-zero exact #) for a given # of trees. randomizes the node (out of 3) without redoing the parse so keys move around. iterates