The skeleton version called batch_params.xml in the batch folder of the Repast project folder is not a good example of what the final format should look like. Similarly, the batch parameters tutorial, while very good and offering plenty of line-by-line examples, does not give a complete example of what a batch_params.xml file should look like, either.

In writing my batch_params.xml file, the file available here helped:

C:\Program Files\RepastSimphony-1.2.0\eclipse\plugins\repast.simphony.batch_1.2.0\models\test_batch_params2.xml

So you don’t have to go searching for it yourself, the content is:

<?xml version="1.0" ?>
<sweep runs="2" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:noNamespaceSchemaLocation="batch_params.xsd">
    <parameter name="double_const" type="constant" constant_type="number" value="4.0" />
    <parameter name="long_const" type="constant" constant_type="number" value="11L" />
    <parameter name="string_const" type="constant" constant_type="string" value="hello cormac" />
    <parameter name="boolean_const" type="constant" constant_type="boolean" value="false" />
    <parameter name="long_param" type="number" start="1L" end="3" step="1">
       <parameter name="float_param" type="number" start=".8f" end="1.0f" step=".1f">
          <parameter name="string_param" type="list" value_type="String" values="foo bar">
              <parameter name="randomSeed" type="list" value_type="int" values="1 2" />
          </parameter>
       </parameter>
    </parameter>
</sweep>

Christof Zellweger, a postgraduate student at the University of Melbourne, also notes that the batch parameters XSD describing the schema of the batch_params.xml is in the plugins folder of the core Repast module. The schema file is likely to be located here: /path/to/repast/installation/eclipse/plugins/repast.simphony.batch_/models/batch_params.xsd.

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Updated 2012.07.28.