renamed beta_not to beta_0, and some minor changes
renamed beta_not to beta_0, and some minor changes

khalibartan/pgmpy,abinashpanda/pgmpy,jhonatanoliveira/pgmpy,sandeepkrjha/pgmpy,pgmpy/pgmpy,sandeepkrjha/pgmpy,abinashpanda/pgmpy,khalibartan/pgmpy,kris-singh/pgmpy,ankurankan/pgmpy,kris-singh/pgmpy,ankurankan/pgmpy,jhonatanoliveira/pgmpy,pgmpy/pgmpy