1 The SAS System                                 08:15 Friday, November 23, 2001

NOTE: Copyright (c) 1999-2001 by SAS Institute Inc., Cary, NC, USA. 
NOTE: SAS (r) Proprietary Software Release 8.2 (TS2M0)
      Licensed to UNC-CHAPEL HILL-SYSTEMWIDE-T/R, Site 0039466002.
NOTE: This session is executing on the WIN_PRO  platform.



NOTE: SAS initialization used:
      real time           4.17 seconds
      cpu time            0.12 seconds
      
1          TITLE1 "EXAMPLE1.SAS--Demonstrate simple LINMOD use";
2          
3          * Data are from Danford, Hughes, and McNee,              *;
4          * "On the Analysis of Repeated Measurement Experiments," *;
5          * Biometrics, 16, 1960, pp. 547-565.                     *;
6          
7          * 0. Define raw data file;
8          FILENAME IN01 "..\EXAMPLES\PAYNE.DAT";
9          DATA PAYNE;
10              INFILE IN01;
11              INPUT @7 GROUP $ INIT SCORE2 SCORE4 SCORE6 SCORE8 SCORE10;
12         * Create indicator variables ;
13         CONTROL = (GROUP="1");
14         LOW     = (GROUP="2");
15         MODERATE= (GROUP="3");
16         HIGH    = (GROUP="4");
17         

NOTE: The infile IN01 is:
      File Name=D:\PROGRAMS\LINMOD33\EXAMPLES\PAYNE.DAT,
      RECFM=V,LRECL=256

NOTE: 45 records were read from the infile IN01.
      The minimum record length was 31.
      The maximum record length was 31.
NOTE: The data set WORK.PAYNE has 45 observations and 11 variables.
NOTE: DATA statement used:
      real time           0.02 seconds
      cpu time            0.02 seconds
      

18         PROC PRINT DATA=PAYNE;
19         
20         * 1. Define directory in which LINMOD source code has been stored;
21         %LET LMDIRECT = ..\SOURCE\    ;
22         
23         * 2. Define SAS macro code needed;
24         %INCLUDE "&LMDIRECT.MACROLIB.MAC" / NOSOURCE2 ;
41         
2 The SAS System                                 08:15 Friday, November 23, 2001

42         * 3. Reduce raw data to a TYPE=CORR file named _CORRDS_
43              with characteristics required by LINMOD;
44         &PROCSSCP DATA=PAYNE ;

NOTE: There were 45 observations read from the data set WORK.PAYNE.
NOTE: The PROCEDURE PRINT printed page 1.
NOTE: PROCEDURE PRINT used:
      real time           0.02 seconds
      cpu time            0.02 seconds
      

45                   VAR CONTROL LOW MODERATE HIGH INIT
46                   SCORE2 SCORE4 SCORE6 SCORE8 SCORE10;
47         
48         * 4.1 Start IML with at least minimum space needed;
49         *     Use SHOW SPACE statement and larger WORKSIZE, SYMSIZE values
50               to tune performance with bigger problems;

NOTE: The data set WORK._CORRDS_ has 14 observations and 13 variables.
NOTE: PROCEDURE CORR used:
      real time           0.01 seconds
      cpu time            0.01 seconds
      

51         PROC IML WORKSIZE=1000 SYMSIZE=1000;
Worksize    = 1024000
Symbol size = 1024000
NOTE: IML Ready
52         
53         * 4.2 Initialize LINMOD IML code;
54         &LINMOD ;
NOTE: Module _DEFOPT_ defined.
NOTE: Module _EREXIT_ defined.
NOTE: Module _FITMOD_ defined.
NOTE: Module _GETCSS_ defined.
NOTE: Module _INITL_ defined.
NOTE: Module _MAKESS_ defined.
NOTE: Module _NMLIST_ defined.
NOTE: Module _PRPARM_ defined.
NOTE: Module _PVTYPE_ defined.
NOTE: Module _SCAN_ defined.
NOTE: Module _SETOPT_ defined.
NOTE: Module _TSTGLH_ defined.
NOTE: Module _UNIREP_ defined.
NOTE: Module _UNSCAN_ defined.
NOTE: Module _ZPIVOT_ defined.
NOTE: Module FITMODEL defined.
NOTE: Module GETCORSS defined.
NOTE: Module MAKESS defined.
NOTE: Module SETOPT defined.
3 The SAS System                                 08:15 Friday, November 23, 2001

NOTE: Module TESTGLH defined.
NOTE: Module NAMELIST defined.
NOTE: Module UTREND defined.
NOTE: Module UMEAN defined.
NOTE: Module UPOLY1 defined.
NOTE: Module UPOLY2 defined.
2304       
2305       * 5. Retrieve the file _CORRDS_ created in Step 3 ;
2306       RUN GETCORSS;
2307       
2308       * 6. Define the model and estimate primary parameters;
2309       INDVARS = { "CONTROL" "LOW" "MODERATE" "HIGH" "INIT" };
2310       DEPVARS=NAMELIST("SCORE",2,10,2);
2311       *Last statement creates following matrix--
2312       *DEPVARS = { "SCORE2" "SCORE4" "SCORE6" "SCORE8" "SCORE10" };
2313       RUN FITMODEL;
2314       *RESET PRINT;
2315       * 7.1 Conduct a test (and estimation) step;
2316       NOTE={"* MANOVA Test of Main Effect of Treatment,            *"
2317           , "* comparing each treatment group to the control group *" } ;
2318       PRINT ,NOTE ;
2319       C = { 1 -1  0  0   0 ,
2320             1  0 -1  0   0 ,
2321             1  0  0 -1   0 } ;
2322       THETARNM= { "C-LOW"  "C-MOD"  "C-HIGH" };
2323       *U defaults to Identity matrix, if NROW(U)=0;
2324       RUN TESTGLH;
2325       
2326       * 7.2 Conduct another test (and estimation) step;
2327       NOTE={"* Trends by Treatment Interaction,                    *"
2328           , "* comparing each treatment group to the control group *" } ;
2329       PRINT , NOTE ;
2330       *Re-use the same C matrix;
2331       *Note that all user inputs (C, U, THETA0, THETARNM, THETACNM, etc.)
2332        are never changed by LINMOD, and hence remain in existence;
2333       *May FREE THETACNM, for example, to avoid conflict
2334        between successive invocations of TSTGLH;
2335       TIMES ={2 4 6 8 10};
2336       RUN UPOLY1(TIMES  ,"Time",
2337                  USCORE , SCORENM );
2338       U = USCORE;
2339       THETACNM = SCORENM ;
2340       RUN TESTGLH;
NOTE: Exiting IML.
NOTE: The PROCEDURE IML printed pages 2-8.
NOTE: PROCEDURE IML used:
      real time           0.33 seconds
      cpu time            0.30 seconds
      

4 The SAS System                                 08:15 Friday, November 23, 2001

NOTE: SAS Institute Inc., SAS Campus Drive, Cary, NC USA 27513-2414
NOTE: The SAS System used:
      real time           5.03 seconds
      cpu time            0.48 seconds