home *** CD-ROM | disk | FTP | other *** search
/ NetNews Usenet Archive 1993 #3 / NN_1993_3.iso / spool / bit / listserv / sasl / 5732 < prev    next >
Encoding:
Text File  |  1993-01-23  |  1.7 KB  |  46 lines
  1. Comments: Gated by NETNEWS@AUVM.AMERICAN.EDU
  2. Path: sparky!uunet!paladin.american.edu!auvm!WUBIOS.WUSTL.EDU!PHIL
  3. Return-Path: <@OHSTVMA.ACS.OHIO-STATE.EDU:phil@wubios.wustl.edu>
  4. Return-Path: <phil@wubios>
  5. X-Mailer: ELM [version 2.4 PL20A]
  6. Mime-Version: 1.0
  7. Content-Type: text/plain; charset=US-ASCII
  8. Content-Transfer-Encoding: 7bit
  9. Content-Length: 990
  10. Message-ID: <9301221956.AA22652@wubios>
  11. Newsgroups: bit.listserv.sas-l
  12. Date:         Fri, 22 Jan 1993 13:56:26 -0600
  13. Reply-To:     "J. Philip Miller" <phil@WUBIOS.WUSTL.EDU>
  14. Sender:       "SAS(r) Discussion" <SAS-L@UGA.BITNET>
  15. From:         "J. Philip Miller" <phil@WUBIOS.WUSTL.EDU>
  16. Subject:      Performance of Proc MIXED
  17. Comments: To: SAS Mailing List <SAS-L@ohstvma.ircc.ohio-state.edu>
  18. Lines: 26
  19.  
  20. While doin some analyses using the Beta OS/2 version of PROC MIXED, we noted
  21. that
  22.  
  23.  
  24. >     The program                              *   sample sizes: *
  25. >     PROC MIXED METHOD=REML;                  *   BELT     n    *
  26. >       CLASS BELT STATION;                    *    .     7249   *
  27. >       MODEL MAP = BELT/ SOLUTION;            *    0     2093   *
  28. >       RANDOM STATION(BELT);                  *    1     2594   *
  29. >       FORMAT BELT BLT.                       *******************
  30. >     RUN;
  31. >     took 26 minutes to run. The same program with the addition of
  32. >     WHERE BELT IN (0 1);
  33. >     took 6 minutes.  The results were the same.
  34. >
  35.  
  36. Now this is wall time and we know that disk i/o can have a major effect, but
  37. this seems a little strange.  Anyone else noticed similar results?
  38.  
  39. -phil
  40.  
  41.  
  42. --
  43.      J. Philip Miller, Professor, Division of Biostatistics, Box 8067
  44.          Washington University Medical School, St. Louis MO 63110
  45.           phil@wubios.WUstl.edu - (314) 362-3617 [362-2694(FAX)]
  46.