Freeware: a Chernoff Faces Java Applet
References to the Chernoff's original articles:
Chernoff, H. (1973). Using faces to represent points in k-dimensional space graphically. Journal of American Statistical Association, 68, 361-368.
Chernoff, H., & Rizvi, M. H. (1975). Effect on classification error or random permutations of features in representing multivariate data by faces. Journal of American Statistical Association, 70, 548-554.
The page runs under Netscape Navigator 4.05 and is best viewed using Microsoft Internet Explorer 4.x or later.
NETSCAPE USERS: The demo was initially developed for Navigator 4.05 then ported to MS IE. However, it crashes later versions of Netscape, including 4.5 and 4.7, and is still somewhat buggy on Netscape 4.05. The fault lies with the browser. Cf. Navigator DHTML Bug workaround. Navigator 4.05 will often jumble the layout upon load if the page is loaded when the browser is not maximized (full screen), but then get it right on reload. Everything works fine in Internet Explorer.