Copyright ©  K.J. Beath 1994. All rights reserved.
Portions copyright © Symantec Corporation
This software was created using the THINK Class Library.
Portions of this software were created using EXTENDER GrafPak™ by Invention Software.
Matrix inversion using algorithms AS6 and AS7 by M.J.R. Healy from Applied Statistics rewritten in Pascal.
Preferences files were implemented using Object Classes from Peter Broadribb  and Jamie McCarthy. (Thanks)
Useful information was obtained from'Statistical Models in S' edited by J.M. Chambers and T.J.Hastie, Wadsworth & Brooks/Cole (1992).
Programmed almost entirely on a Macintosh Plus and then a Color Classic (which explains any problems on larger screen Macs, please tell me about them).