networkx 图 KeyError: 'nodesize'

编程问答 2022-05-25

问题描述

我正在尝试制作图表，但出现错误： keyerror 'nodesize'

我的代码是：

graph = nx.Graph()
for index,row in node_df.iterrows():
graph.add_node(row['node'],nodesize=row['nodesize'])

print("node: {}".format( [graph.nodes[node] for node in graph] ) )
print("nodesize: {}".format( [graph.nodes[node]['nodesize'] for node in graph] ) )

for index,row in association_data.iterrows():
    graph.add_weighted_edges_from([(row['antecedents'],row['consequents'],row ['support'])])

print("node2: {}".format( [graph.nodes[node] for node in graph] ) )

pos = nx.spring_layout(graph,k=0.8,iterations=50)

sizes = [graph.nodes[node]['nodesize']*25 for node in graph] **'line 72'**

结果：

node: [{'nodesize': 1274},{'nodesize': 339},{'nodesize': 195},{'nodesize': 86},{'nodesize': 126},{'nodesize': 157},{'nodesize': 109},{'nodesize': 115},{'nodesize': 287},{'nodesize': 164},{'nodesize': 84},{'nodesize': 176},{'nodesize': 107}]
nodesize: [1274,339,195,86,126,157,109,115,287,164,84,176,107]
node2: [{'nodesize': 1274},{'nodesize': 
126},{'nodesize': 107},{},{}]

Traceback (most recent call last):
File "D:/SYun/BigData/Corona/Relation_Analysis_mlxtend_apriori.py",line 72,in <module>
print("node: {}".format( [graph.nodes[node]['nodesize'] for node in graph] ) )
File "D:/SYun/BigData/Corona/Relation_Analysis_mlxtend_apriori.py",in <listcomp>
print("node: {}".format( [graph.nodes[node]['nodesize'] for node in graph] ) )
KeyError: 'nodesize'

我打印了属性以找出问题所在。
好像在add_weighted_edges_from

之后
  1. nodesize 不可调用
  2. 不知道为什么要创建 {},{}。

有人可以回答问题 1 和 2 以及解决问题的方案？

解决方法

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