hdf5 output from ezgraphs works

[Paul E Johnson]

In case you saw my message here
http://www.santafe.edu/projects/swarm/archive/list-archive.0109/0088.html
you might have wondered if saving data out of ezgraph time streams into
hdf5 data archives will work. It does!

The example that is discussed in my note does not work against the
newest swarm, but it is simple to fix it, and I've made that change in
the example code.  The problem was that the ezgraph stores up its data
and does not write unless it 'fills up' or the graph is dropped.  In
this case, it did not fill up, and the graph was not being dropped at
shutdown, and so it was not closing and saving. Adding a command in the
drop method of the Swarm fixes that (ezgraph.drop()).

-- 
Paul E. Johnson                       email: address@hidden
Dept. of Political Science            http://lark.cc.ukans.edu/~pauljohn
University of Kansas                  Office: (785) 864-9086
Lawrence, Kansas 66045                FAX: (785) 864-5700

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