SavePajek

SavePajek(Graph, OutFNm, NIdColorH=None, NIdLabelH=None, EIdColorH=None)

A graph method that saves a graph in a Pajek .NET format.

Parameters:

• Graph: graph

  A Snap.py graph or a network.

• OutFNm: string

  Specifies output filename of Pajek formatted graph.

• (optional) NIdColorH: Python dictionary or TIntStrH, a hash table of int keys and string values

  Maps node ids to node colors. Default node color is Red.

• (optional) NIdLabelH: Python dictionary or TIntStrH, a hash table of int keys and string values

  Maps node ids to node string labels.

• (optional) EIdColorH: Python dictionary or TIntStrH, a hash table of int keys and string values

  Maps edge ids to node colors. Default edge color is black.

Return value:

• None

For additional information see http://vlado.fmf.uni-lj.si/pub/networks/pajek/doc/pajekman.pdf

The following example saves the graph in the Pajek format in: TNGraph, TUNGraph, and TNEANet:

import snap

NIdColorH = {}
for i in range(100):
    if i % 2 == 0:
        NIdColorH[i] = "red"
    else:
        NIdColorH[i] = "blue"
NIdLabelH = {}
for i in range(100):
    NIdLabelH[i] = str(i)
EIdColorH = {}
for i in range(1000):
    EIdColorH[i] = "red"

Graph = snap.GenRndGnm(snap.TNGraph, 100, 1000)
Graph.SavePajek("Pajek_Graph1.out", NIdColorH, NIdLabelH, EIdColorH)

UGraph = snap.GenRndGnm(snap.TUNGraph, 100, 1000)
UGraph.SavePajek("Pajek_Graph2.out", NIdColorH, NIdLabelH, EIdColorH)

Network = snap.GenRndGnm(snap.TNEANet, 100, 1000)
Network.SavePajek("Pajek_Graph3.out", NIdColorH, NIdLabelH, EIdColorH)