PlotSngValRank

PlotSngValRank(SngVals, FNmPref, DescStr)

A graph method for directed graphs that plots the rank distribution of singular values of the 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:

  • SngVals: int

    Number of largest singular values to plot.

  • FNmPref: string

    File name preference for the plotted graph.

  • DescStr: string

    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.TNGraph, 100, 1000)
Graph.PlotSngValRank(100, "filename", "Singular Value Distribution")