Dear Colleague:

We have launched the development of "A Statistical Package for
the Personal Computer" (SPPC) which is designed for use with the
IBM PC and compatible computers. Although the SPPC contains only
a few programs at present, they are quite powerful and more will
be added in the near future.

You can test the SPPC programs by use of two data files on the
diskette. A raw data file has the name LONGLEYR.DAT and a summary
data file has the name LONGLEYS.DAT -- or you can test the
programs by using your own data. 

We have included the Longley data because they constitute a
severe test for any multiple regression program as described by
Peter Lachenbruch in his article which appeared in the November
1983 issue of BYTE Magazine. We are pleased to tell you that the
SPPC Multiple Regression program produced a completely accurate
solution to the Longley data (none of the programs that were
reviewed by Lachenbruch would do that).

As you will see by using the enclosed diskette, we are attempting
to produce powerful and highly accurate statistical software at
very modest cost to the user. Moreover, as the package grows
users will be able to purchase only those procedures they need or
want. 

If you or your firm decide to purchase these materials you will
be placed on a mailing list and notified of additions to the
SPPC. Moreover, if you decide to purchase one or more of the SPPC
programs we shall provide updates for Version 1.0  for the cost of
postage and handling. Regardless of your purchase decision we
would be most interested in your suggestions and your evaluation
of these materials. 

We are most interested to know what additional procedures you
would like to see included in the SPPC. Since we are in the
process of developing the entire package you can tell us exactly
what you would like to see. We'll do everything we can to
accomodate your needs and interests.

By all means, pass this demonstration diskette on to friends or
colleagues who may be interested. 

Please let us know if we can be of service.


                               Very truly yours,


                               WALMYR Publishing Company
                               PO Box 3554, Leon Station
                               Tallahassee, FL 32315