Date:         Tue, 24 Feb 2004 15:13:00 -0700
Reply-To:     Michael Murff <MurffMJ@LDSCHURCH.ORG>
Sender:       "SAS(r) Discussion" <SAS-L@LISTSERV.UGA.EDU>
From:         Michael Murff <MurffMJ@LDSCHURCH.ORG>
Subject:      Floating point storage of missing values
Content-Type: text/plain; charset=us-ascii

Hi SAS-L,

I recently came upon the idea that SAS actually stores very small negative
numbers in place of missing data. If this is true then it seems that would
potentially create problems when conditioning output in terms of a "less than"
and not including a lower bound.

 if var<100 then output;

So perhaps this statement would output records with a missing value for var as
well as the desired ones that meet the face value of the condition?

Does anyone have more information on this point?

Thanks in advance,

Mike Murff
SLC, Utah