make data_model a class attribute for MagicDataFrames, too
make data_model a class attribute for MagicDataFrames, too
Caoimhinmg/PmagPy,Caoimhinmg/PmagPy,lfairchild/PmagPy,lfairchild/PmagPy,lfairchild/PmagPy,Caoimhinmg/PmagPy