PlotSngVec (SWIG)
'''''''''''''''''

.. function:: PlotSngVec(Graph, FNmPref, DescStr)
   :noindex:

Ranks the values of the leading left singular vector of the graph adjacency matrix plots the first *SngVals* on a log-log chart. The function creates three new files: 1) sngVecL.<*FNmPref*>.plt (the plot), 2) sngVecL.<*FNPref*>.eps (the plotting description), and 3) sngVecL.<*FNmPref*>.tab (the tab separated plotting data).

Parameters:

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

- *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:`PlotSngVec` for :class:`TNGraph`::

    import snap

    Graph = snap.GenRndGnm(snap.PNGraph, 100, 1000)
    snap.PlotSngVec(Graph, "my_filename", "my_chart_title")