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Date: Tue, 13 Nov 2012 12:36:26 -0800 (PST)
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Subject: Plotting frequency of word occurences
From: hogiaus@gmail.com
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Xref: csiph.com comp.graphics.apps.gnuplot:1486

This seems like it should be dead simple, but extensive googleing has yielded no results. Say I have a datafile like so:

-----
neutron
neutron
e-
proton
[Li]8
neutron
[Si]28
[Li]8
e-
-----

And I want to make a histogram that will determine all unique strings, and display the counts of each one, e.g. 3 neutron, 2 e-, 1 proton, 2 [Li]8, 1 [Si]28.

I can't find any examples on the web that do something like this. GNUPLOT seems to have trouble with strings. Any help would be appreciated :D