图

将图可视化为 SVG 图像。

[1]:

from IPython.display import SVG

[2]:

import numpy as np

[3]:

from sknetwork.data import karate_club, painters, movie_actor, load_netset
from sknetwork.visualization import visualize_graph, visualize_bigraph

图

[4]:

graph = karate_club(metadata=True)
adjacency = graph.adjacency
position = graph.position
labels = graph.labels

[5]:

# graph
image = visualize_graph(adjacency, position, labels=labels)
SVG(image)

[5]:

../../_images/tutorials_visualization_graphs_7_0.svg

[6]:

# export
image = visualize_graph(adjacency, position, labels=labels, filename='karate_club')

[7]:

# adding names
image = visualize_graph(adjacency, position, names=np.arange(34), name_position='below', labels=labels)
SVG(image)

[7]:

../../_images/tutorials_visualization_graphs_9_0.svg

[8]:

# node size
image = visualize_graph(adjacency, position, labels=labels, display_node_weight=True)
SVG(image)

[8]:

../../_images/tutorials_visualization_graphs_10_0.svg

[9]:

# scores (here = degrees)
degrees = adjacency.dot(np.ones(adjacency.shape[0]))
image = visualize_graph(adjacency, position, scores=degrees)
SVG(image)

[9]:

../../_images/tutorials_visualization_graphs_11_0.svg

[10]:

# seeds (here 2 nodes of highest degrees)
seeds = list(np.argsort(-degrees)[:2])
image = visualize_graph(adjacency, position, labels=labels, seeds=seeds)
SVG(image)

[10]:

../../_images/tutorials_visualization_graphs_12_0.svg

[11]:

# no edge
graph = load_netset('openflights')
adjacency = graph.adjacency
position = graph.position

Parsing files...
Done.

[12]:

weights = adjacency.dot(np.ones(adjacency.shape[0]))
image = visualize_graph(adjacency, position, scores=np.log(weights), node_order=np.argsort(weights),
                  node_size_min=2, node_size_max=10, height=400, width=800,
                  display_node_weight=True, display_edges=False)
SVG(image)

[12]:

../../_images/tutorials_visualization_graphs_14_0.svg

有向图

[13]:

graph = painters(metadata=True)
adjacency = graph.adjacency
names = graph.names
position = graph.position

[14]:

image = visualize_graph(adjacency, position, names, name_position='above')
SVG(image)

[14]:

../../_images/tutorials_visualization_graphs_17_0.svg

二部图

[15]:

graph = movie_actor(metadata=True)
biadjacency = graph.biadjacency
names_row = graph.names_row
names_col = graph.names_col

[16]:

# default layout
image = visualize_bigraph(biadjacency, names_row, names_col, color_row='blue', color_col='red')
SVG(image)

[16]:

../../_images/tutorials_visualization_graphs_20_0.svg

[17]:

# keep original order of rows and columns
image = visualize_bigraph(biadjacency, names_row, names_col=names_col, color_row='blue', color_col='red',
                    reorder=False)
SVG(image)

[17]:

../../_images/tutorials_visualization_graphs_21_0.svg