Date:         Mon, 20 Feb 2006 11:28:46 -0800
Reply-To:     "EXT-Baxter, Shelley" <Shelley.Baxter@BOEING.COM>
Sender:       "SAS(r) Discussion" <SAS-L@LISTSERV.UGA.EDU>
From:         "EXT-Baxter, Shelley" <Shelley.Baxter@BOEING.COM>
Subject:      Array Processing Multiple Comparisons across columns and rows
Content-Type: text/plain; charset="US-ASCII"

I have an r by c table. I have 5 columns of dates that may or may not be
null. If they are not null they must equal each other across columns and
NOT be equal across observations. I have to be able to identify EACH
Row/Column  to set an error flag. Can I do some sort of conditional
array processing across and down?


  No. | Date1   | Date2    | Date3   | Date4   |  Date5   |
  123 |10/24/06|    .        |    .        |10/24/06|    .        |
  123 |      .      |10/25/06|    .        | .           |10/26/06|
  123 |     .       |  .          |10/27/06|  .          |  .          |
  123 |    .        |10/27/06 |    .       |10/27/06| .           |




Shelley S. Baxter, Ph.D.
> EXT-Programmer / Analyst
> Airplane Reliability & Maintainability Systems
Boeing Corp.