CLARITY: A Common Lisp Data Alignment Repository
"CLARITY is a tool and method for the storage and comparison of data with numeric and set membership components". It is especially suited for bioinformatics applications.
A pipe-based library for interfacing the gnuplot data plotting program. It has an Ltk-based GUI.
A set of CFFI-based Common Lisp bindings to the PLplot scientific plotting library, which can produce several kinds of 2D and 3D plots.