Comment by slelievre for The .mtx file contains the information of an sparse matrix in matrix market format. How can I generate the underlying graph of this matrix in SAGE? Alternatively, since I now how to generate the .mat file from .mtx file in MATLAB, how can I generate the graph from .mat file in SAGE? The matrix in .mtx in format is the adjacency matrix of the graph. The problem is I cannot read the matrix and generate the underlying graph in SAGE 8.2 (Jupyter).

Also, please write Sage rather than SAGE. See this wiki page: - [https://wiki.sagemath.org/FromSageToSageMath](https://wiki.sagemath.org/FromSageToSageMath)