I saw from your next message you found what you
were looking for, but just to clarify for everyone
else:

> I wonder if I can find some examples that illustrate how to
> use NEEvaluateCommand.

We can't distribute examples because we don't
own any of the annotated data. My suggestion
is to use the CoNLL data if you want something
simple or the GENIA data if you want something
more complex XML data oriented. Both are free.

> I'm also interested in using it for 10-fold cross validation...

The current evaluation command does not do
10-fold x-validation. It does an evaluation
of the last n% after training on the first
(100-n)%.

There are two options for x-validation:

1. Hack the current command by rearranging
the corpus cyclicly. Down side is that you
have to combine the results yourself somehow.

2. Rewrite your own command that does it right.
There just needs to be a loop on top of what
there's now and some way to combine the results.

- Bob