GetBfsEffDiam

Note

This page is a draft and under revision.

GetBfsEffDiam(Graph, NTestNodes, IsDir, EffDiam, FullDiam)

Note

This function is not yet supported.

Returns the (approximation of the) Effective Diameter and the Diameter of Graph by performing BFS from NTestNodes starting nodes.

Parameters:

• Graph: graph (input)

  A Snap.py graph or a network.

• NTestNodes: int (input)

  The number of random start nodes to use in the BFS used to calculate the graph diameter and effective diameter.

• IsDir: bool (input)

  Indicates whether the edges should be considered directed or undirected.

• EffDiam: float (output)

  The computed effective diameter will be stored in EffDiam.

• FullDiam: float (output)

  The computed full diameter will be stored in FullDiam.

Return value:

• float

  The effective diameter of the graph (same value as EffDiam)

The following example shows how to fetch the in-degrees for nodes in TNGraph, TUNGraph, and TNEANet:

import snap

Graph = snap.GenRndGnm(snap.PNGraph, 100, 1000)
NTestNodes = 1
IsDir = True
EffDiam = 0
FullDiam = 0
snap.GetBfsEffDiam(Graph, NTestNodes, IsDir, EffDiam, FullDiam)
print("Effective Diameter = %f" % EffDiam)
print("Full Diameter = %f" % FullDiam)

Graph = snap.GenRndGnm(snap.PUNGraph, 100, 1000)
NTestNodes = 1
IsDir = False
EffDiam = 0
FullDiam = 0
snap.GetBfsEffDiam(Graph, NTestNodes, IsDir, EffDiam, FullDiam)
print("Effective Diameter = %f" % EffDiam)
print("Full Diameter = %f" % FullDiam)

Graph = snap.GenRndGnm(snap.PNEANet, 100, 1000)
NTestNodes = 1
IsDir = False
EffDiam = 0
FullDiam = 0
snap.GetBfsEffDiam(Graph, NTestNodes, IsDir, EffDiam, FullDiam)
print("Effective Diameter = %f" % EffDiam)
print("Full Diameter = %f" % FullDiam)