42. class CensusCell: Accumulator for counts of
individual birds
cbchistlib.py
# - - - - - c l a s s C e n s u s C e l l
class CensusCell(Cell):
'''Displays counts of individuals.
Exports:
CensusCell():
[ return a new, empty CensusCell instance ]
.add(census):
[ census is a pycbc.Census instance ->
self := self with number of individuals added from
census ]
Internally we maintain four counts: regular, questionable,
count-week, and questionable count-week. Each of these counts
is maintained as an instance of Section 43, “class CensusTotal: Number of individuals in
one category”: that class handles the problem
of combining known numbers with unknown numbers.
cbchistlib.py
State/Invariants:
._regular:
[ number of regular individuals as a CensusTotal instance ]
._q:
[ number of questionable individuals as a CensusTotal ]
._plus:
[ number of count-week individuals as a CensusTotal ]
._qPlus:
[ number of questionable count-week individuals as a
CensusTotal ]
'''
__slots__ = ('_regular', '_q', '_plus', '_qPlus')
