Depends on http://pear.php.net/manual/en/package.webservices.xml-rpc2.client.php

There's really nothing here. Interface needs work, the lib dependency is
probably unnecessary, etc.

When the constructor was "matrix()" everything worked fine until we moved to the namespace in SparkLib, then the constructor wasn't being called. This was a silent failure that popped up in Regression by complaining about undefined indexes in the coefficient array. Before this fix all polynomial regression was effectively nonfunctional.

Set elements of this array to define fallback includes (or whatever you'd
like really) in the case that a class isn't found at all.