使用 Pandas 数据框将边权重分配给 networkx 图

Ana*_*yal 6 graph networkx python-3.x pandas weighted-graph

我正在 python 3 中构建 networkx 图。我正在使用 Pandas 数据框为图提供边和节点。这是我所做的:

test = pd.read_csv("/home/Desktop/test_call1", delimiter = ';')

g_test = nx.from_pandas_edgelist(test, 'number', 'contactNumber', edge_attr='callDuration')
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我想要的是 Pandas 数据框的“callDuration”列作为 networkx 图的边的权重,边的厚度也相应地改变。

我还想获得“n”个最大加权边。

Sco*_*ton 7

咱们试试吧:

import pandas as pd
import numpy as np
import networkx as nx
import matplotlib.pyplot as plt

df = pd.DataFrame({'number':['123','234','345'],'contactnumber':['234','345','123'],'callduration':[1,2,4]})

df

G = nx.from_pandas_edgelist(df,'number','contactnumber', edge_attr='callduration')
durations = [i['callduration'] for i in dict(G.edges).values()]
labels = [i for i in dict(G.nodes).keys()]
labels = {i:i for i in dict(G.nodes).keys()}

fig, ax = plt.subplots(figsize=(12,5))
pos = nx.spring_layout(G)
nx.draw_networkx_nodes(G, pos, ax = ax, labels=True)
nx.draw_networkx_edges(G, pos, width=durations, ax=ax)
_ = nx.draw_networkx_labels(G, pos, labels, ax=ax)
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输出:

在此处输入图片说明