- fixed trace term - results close, but not exactly equal to opengeoda
- fixed trace term
- results close, but not exactly equal to opengeoda

Alwnikrotikz/pysal,AlanZatarain/pysal,Alwnikrotikz/pysal,tectronics/pysal,tectronics/pysal,Alwnikrotikz/pysal,AlanZatarain/pysal,AlanZatarain/pysal,tectronics/pysal