SaveMatlabSparseMtx
'''''''''''''''''''

.. function:: SaveMatlabSparseMtx(OutFNm)

A graph method that saves a graph in a MATLAB sparse matrix format.

Each line contains a tuple of 3 values: <source node id><tab><destination node id><tab>1.

Parameters:

- *OutFNm*: string
    Name of the output file.

Return value:

- None

The following example shows how to save a graph of type :class:`TNGraph`, :class:`TUNGraph`, and :class:`TNEANet` in a MATLAB sparse matrix format::

    import snap

    Graph = snap.GenRndGnm(snap.TNGraph, 1000, 500)
    Graph.SaveMatlabSparseMtx("TNGraph.mat")

    UGraph = snap.GenRndGnm(snap.TUNGraph, 1000, 500)
    UGraph.SaveMatlabSparseMtx("TUNGraph.mat")

    Network = snap.GenRndGnm(snap.TNEANet, 1000, 500)
    Network.SaveMatlabSparseMtx("TNEANet.mat")