Burns Statistics recently finished the "Technical Analysis Challenge" which was a study of the ability to tell real stock price series from random ones. Some people seem to be finding it a fun game to play (including how best to cheat). There are 100 series of 500 points each. Each of these series has 4 possible extensions of 50 points each -- one is real the other 3 are random. On the Burns Statistic website are: * plots of the data * the actual data * the answers * the results from the few that actually made submissions * a report on the results * the advertisement for R related to the challenge Patrick Burns Burns Statistics patrick at burns-stat.com +44 (0)20 8525 0696 http://www.burns-stat.com (home of S Poetry and "A Guide for the Unwilling S User")