Merge pull request #8778 from SylvainCorlay/Meta...
Merge pull request #8778 from SylvainCorlay/Meta Use isinstance to check for types

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Exploring Graphs.ipynb
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Explore Random Graphs Using NetworkX

In this example, we build a simple UI for exploring random graphs with NetworkX.

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from IPython.html.widgets import interact
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%matplotlib inline
import matplotlib.pyplot as plt
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import networkx as nx
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# wrap a few graph generation functions so they have the same signature

def random_lobster(n, m, k, p):
    return nx.random_lobster(n, p, p / m)

def powerlaw_cluster(n, m, k, p):
    return nx.powerlaw_cluster_graph(n, m, p)

def erdos_renyi(n, m, k, p):
    return nx.erdos_renyi_graph(n, p)

def newman_watts_strogatz(n, m, k, p):
    return nx.newman_watts_strogatz_graph(n, k, p)

def plot_random_graph(n, m, k, p, generator):
    g = generator(n, m, k, p)
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interact(plot_random_graph, n=(2,30), m=(1,10), k=(1,10), p=(0.0, 1.0, 0.001),
        generator={'lobster': random_lobster,
                   'power law': powerlaw_cluster,
                   'Newman-Watts-Strogatz': newman_watts_strogatz,
                   u'Erdős-Rényi': erdos_renyi,