PlotSngValDistr (SWIG)
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.. function:: PlotSngValDistr(Graph,SngVals, FNmPref, DescStr)
   :noindex:

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

Parameters:

- *Graph*: directed graph (input)
    A Snap.py directed graph.

- *SngVals*: integer (input)
    Representing one half the desired number of singular values.

- *FNmPref*: string (input)
    A string representing the preferred output file name.

- *DescStr*: string (input)
    Description of the graph. The string should be non-empty.

Return value:

- None


The following example shows how to use :func:`PlotSngValDistr` for :class:`TNGraph`::

        import snap

        Graph = snap.GenRndGnm(snap.PNGraph, 100, 5000)
        snap.PlotSngValDistr(Graph, 50, "title", "SngVal Distribution")