def geohash(self, length):
"""
:param length: length of the geohash
:returns: an array of N geohashes, one per site
"""
lst = [geohash(lon, lat, length)
for lon, lat in zip(self.lons, self.lats)]
return numpy.array(lst, (numpy.string_, length))
def geohash(self, length):
"""
:param length: length of the geohash in the range 1..8
:returns: an array of N geohashes, one per site
"""
lst = [geohash(lon, lat, length)
for lon, lat in zip(self['lon'], self['lat'])]
return numpy.array(lst, (numpy.string_, length))