check for matching array length
check for matching array length

scikit-hep/root_numpy,ndawe/root_numpy,rootpy/root_numpy,rootpy/root_numpy,rootpy/root_numpy,rootpy/root_numpy,ndawe/root_numpy,scikit-hep/root_numpy,ibab/root_numpy,scikit-hep/root_numpy,ibab/root_numpy,ibab/root_numpy,ndawe/root_numpy,ibab/root_numpy,ndawe/root_numpy,scikit-hep/root_numpy