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[英]Given the number of total nodes and degrees of each node, is it possible to construct a graph?
[英]when remove nodes with low degrees, why some with high degrees have been also deleted from graph?
我試圖刪除低度數的節點,以簡化我的圖形。 這是代碼:
low_degree_node = [x for x in g.nodes() if g.degree(x) <= 50]
g.remove_nodes_from(low_degree_node)
但是當我檢查它是否有效時,我發現一些高度節點也被刪除了。 下面是我的檢查節點:
degree_sequence = sorted((d for n, d in g.degree()), reverse=True)
dmax = max(degree_sequence)
dmin = min(degree_sequence)
print(dmin)
print(dmax)
整個代碼:
# before remove
degree_sequence = sorted((d for n, d in g.degree()), reverse=True)
dmax = max(degree_sequence)
dmin = min(degree_sequence)
print(dmin)
print(dmax)
low_degree_node = [x for x in g.nodes() if g.degree(x) <= 50]
g.remove_nodes_from(low_degree_node)
# after remove
degree_sequence = sorted((d for n, d in g.degree()), reverse=True)
dmax = max(degree_sequence)
dmin = min(degree_sequence)
print(dmin)
print(dmax)
結果是:
# before
2
398
# after
41
363
它出什么問題了? 我怎樣才能刪除低度節點?
沒有可重現的例子很難聲稱,但似乎低度節點連接到最高度節點(所以它是一個星),結果最高度節點仍在圖中,但度數較低(因為它丟失了一些連接的低度節點)。
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