line 620 in mapclassify updated to use sample standard deviation
line 620 in mapclassify updated to use sample standard deviation
AlanZatarain/pysal,pombreda/pysal,google-code-export/pysal,AlanZatarain/pysal,tectronics/pysal,tectronics/pysal,google-code-export/pysal,Alwnikrotikz/pysal,tectronics/pysal,AlanZatarain/pysal,google-code-export/pysal,google-code-export/pysal,pombreda/pysal,pombreda/pysal,Alwnikrotikz/pysal,pombreda/pysal,Alwnikrotikz/pysal