7/2/2016  D. Lawrence

This directory contains code to train a MVA
for use in classifying events as either pi+pi- or
not (=mu+mu- in most cases).

Here is a quick start guide to training a tree
and viewing the results:

> hd_root -PPLUGINS=cppmva -PNTHREADS=8 2pi_smeared.hddm -o 2pi_cppmva.root
> hd_root -PPLUGINS=cppmva -PNTHREADS=8 2mu_smeared.hddm -o 2mu_cppmva.root
> root -l -b -q trainMVA.C
> root
root [0] TMVA::TMVAGUI("CPPMVA_out.root")

The three most interesting things to look at are
probably buttons (4b) (5a), and (5b). The correlation
matrices (button (3)) are also interesting.