Statistics provided by P1F

  Few people understand, and even fewer want, all the statistics available.
It might be well, using sample data, to request all statistics and retain a
copy for study purposes.  The statistics are discussed briefly in the BMD
manual, pages 262 to 267, and references are given.  An advanced statistics
text would be needed to make use of all the statistics provided.

  For most purposes, Chi-Square and Correlations are sufficient, with the
possible addition of Spearman rank-order correlation.  

  These three options are identified as  CH  COR  and  SP   The first two are
provided by the default option, using the RETURN key alone.