PlotSngValRank

PlotSngValRank(Graph, SngVals, FNmPref, DescStr)

Plots the rank distribution of singular values of the Graph adjacency matrix. Plots first SngVals values. The function creates three new files: 1) sngVal.<FNmPref>.plt (the commands used to create the plot), 2) sngVal.<FNPref>.png (the plot), and 3) sngVal.<FNmPref>.tab (the plotting data).

Parameters:

• Graph: directed graph (input)

  A Snap.py directed graph.

• SngVals: int (input)

  Number of largest singular values to plot.

• FNmPref: string (input)

  File name preference for the plotted graph.

• DescStr: string (input)

  Description of the graph. The string should be non-empty.

Return value:

• None

The following example shows how to plot the rank distribution of singular values of the Graph adjacency matrix for TNGraph:

import snap

Graph = snap.GenRndGnm(snap.PNGraph, 100, 1000)
snap.PlotSngValRank(Graph, 100, "filename", "Singular Value Distribution")