Date:         Thu, 28 Jun 2007 10:01:26 -0400
Reply-To:     Tony Trixon <tony.trixon@YAHOO.CO.UK>
Sender:       "SAS(r) Discussion" <SAS-L@LISTSERV.UGA.EDU>
From:         Tony Trixon <tony.trixon@YAHOO.CO.UK>
Subject:      Chisq test

I am using the Chisq test and below is the note in the log

No statistics are computed for x * y since x has less than 2 nonmissing
levels.
NOTE: The above message was for the following by-group:
      Dum=1

As i understand this is a data problem but I am not sure what it means
exactly and whether it is possible to correct it.

Any feedback?