fixes due to incorrect tuple indexing
fixes due to incorrect tuple indexing

yasserglez/pymdptoolbox,silgon/pymdptoolbox,McCabeJM/pymdptoolbox,sawcordwell/pymdptoolbox,yasserglez/pymdptoolbox,silgon/pymdptoolbox,sawcordwell/pymdptoolbox,McCabeJM/pymdptoolbox