Network.
count_per_edge
(obs_on_network, graph=True)[源代码]¶计算每边的计数。
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实例
请注意,这将传递捕捉到网络的点模式的obs-to-edge属性。
>>> import pysal.explore.spaghetti as spgh
>>> ntw = spgh.Network(examples.get_path('streets.shp'))
>>> ntw.snapobservations(examples.get_path('crimes.shp'),
... 'crimes',
... attribute=True)
>>> counts = ntw.count_per_edge(ntw.pointpatterns['crimes']
... .obs_to_edge, graph=False)
>>> counts[(140, 142)]
10
>>> s = sum([v for v in list(counts.values())])
>>> s
287