XGobi

XGobi is a data visualization system for viewing high-dimensional data.

XGvis

XGvis is an interactive visualization system for proximity data as well as for graphs and networks

Reference

  Data Visualization Systems: XGOBI and XGVIS, freely available
  http://public.research.att.com/~stat/xgobi/

via

  hirax.net - PukiWiki - XGvis
  http://www.hirax.net/pukiwiki/pukiwiki.php?XGvis