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Changeset 7

Timestamp:

10/05/04 21:37:05

Author:

fumanchu

Message:

Made the example CrossTab? more real-world

Files:

r6	r7
64	64	return aggfunc
65	65
	66
66	67	def COUNT(obj, current_agg_value):
67	68	"""count -> an aggregate function for use with crosstab()."""
…	…
73	74
74	75	Example:
75		data = CrossTab(source, (lambda x: x.FirstDate.month,),
76		'Field', CrossTab.sum('Size')).results()
	76	>>> f = ["a", "b", "cc", "addd", "a4", "6"]
	77	>>> group = [lambda x: x.isalpha()]
	78	>>> pivot = lambda x: x.startswith("a")
	79	>>> ctab = analysis.CrossTab(f, groups, pivot)
	80	>>> data, columns = ctab.results()
	81	>>> data
	82	{(True,): {False: 2, True: 2}, (False,): {False: 1, True: 1}}
	83	>>> columns
	84	[False, True]
77	85	"""
78	86
79	87	def __init__(self, source=[], groups=[], pivot=None, aggfunc=COUNT):
80	88	"""CrossTab(source, groups, pivot, aggfunc=count)
	89
	90	source: a list of objects.
81	91
82	92	groups: a sequence of attribute names or callables,

r6	r7
81	81
82	82	changelog = """
83		1.2.4 ():
	83	1.2.4 (10/4/04):
84	84	1. Allow Unit properties to be set in Unit.__init__() by **kwargs.
85	85	2. Added a convenience function to Unit for associations. That is,