Tols for Experiments in Planning

The paper describes two separate but synergistic tools for running experiments on large Lisp systems such as planning systems, by which we mean systems that produce plans and execute them in some kind of simulator. The rst tool, called Clip (Common Lisp Instrumentation Package), allows the researcher to deene and run experiments, including experimental conditions (values for parameters of the planner or simulator) and data to be collected. The data are written out to data les that can be analyzed by statistics software. The second tool, called Clasp (Common Lisp Analytical Statistics Package), allows the researcher to analyze data from experiments by using graphics, statistical tests, and various kinds of data manipulation. Clasp has a graphical user interface (using CLIM, the Common Lisp Interface Manager) and also allows data to be directly processed by Lisp functions.