Float index is not allowed

[aiskhak]

Hi,

Just a short notice: dataManager.py, Line 72:
mydict.update({'idxmask': np.array([])}) makes idmask float which is not allowed to be used as an array index. Should be:
mydict.update({'idxmask': np.array([], dtype=np.int32)})

Regards,
Arsen