How to represent graphs using ipython
I recently discovered ipython notebook
which is a powerful tool. As an IT student, I was looking for expectations for graphing in Python. For example, I would like to know if there is a library (like numpy
or matplotlib
?) That can draw from this
{ "1" : ["3", "2"],
"2" : ["4"],
"3" : ["6"],
"4" : ["6"],
"5" : ["7", "8"],
"6" : [],
"7" : [],
"8" : []
}
something like that:
Is there something like this?
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3 answers
You can use networkx and if you need to display the graph in ipython notebook, nxpd
import networkx as nx
from nxpd import draw
G = nx.DiGraph()
G.graph['dpi'] = 120
G.add_nodes_from(range(1,9))
G.add_edges_from([(1,2),(1,3),(2,4),(3,6),(4,5),(4,6),(5,7),(5,8)])
draw(G, show='ipynb')
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You can use pygraphviz :
import pygraphviz
G = pygraphviz.AGraph(directed=True)
G.add_nodes_from(range(1,9))
G.add_edges_from([(1,2),(1,3),(2,4),(3,6),(4,5),(4,6),(5,7),(5,8)])
G.layout()
G.draw('graph.png')
Then in the markdown block:
What concerns:
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If you also want to animate graphs (for example, to learn how the algorithm works) you can use https://github.com/mapio/GraphvizAnim
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