**neighbor_states**,
a Python code which
creates a plot of the US based only on information about
pairs of US states which are neighbors.

The computer code and data files made available on this web page are distributed under the GNU LGPL license.

**neighbor_states** is available in
a MATLAB version and
a Python version.

graphics_test, a Python code which demonstrates techniques for creating a graphic display of a variety of scientific data.

graphviz_test, a Python code which illustrates how the graphviz() code can be used to create plots of mathematical graphs and directed graphs.

- neighbor_states.py, the source code.
- neighbor_states.sh, runs all the tests.
- neighbor_states.txt, the output file.

- neighbor_states.dot, a dot file encoding a plot of the US states based only on neighbor information.
- neighbor_states.png, a plot of the US states based only on neighbor information.