fix Pmag GUI bug for orientation_magic where no sample data is available
fix Pmag GUI bug for orientation_magic where no sample data is available
lfairchild/PmagPy,Caoimhinmg/PmagPy,lfairchild/PmagPy,Caoimhinmg/PmagPy,lfairchild/PmagPy,Caoimhinmg/PmagPy