A Toolbox for Analyzing Programs

The paper describes two separate but synergistic tools for running experiments on large Lisp programs. The rst tool, called Clip (Common Lisp Instrumentation Package), allows the researcher to de ne and run experiments, including experimental conditions (parameter values 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. Finally, the paper describes a number of other data-analysis modules have been added to work with Clip and Clasp.