NOTE: Copyright (c) 1999-2001 by SAS Institute Inc., Cary, NC, USA.
NOTE: SAS (r) Proprietary Software Release 8.2 (TS2M0)
Licensed to NORTH DAKOTA UNIVERSITY SYSTEM-SYSTEMWIDE-INTERNAL, Site 0011524002.
NOTE: This session is executing on the WIN_PRO platform.
NOTE: SAS initialization used:
real time 2.52 seconds
cpu time 0.71 seconds
1 options pageno=1;
2 data reg;
3 input x rep y;
4 xy=x*y;
5 datalines;
NOTE: The data set WORK.REG has 12 observations and 4 variables.
NOTE: DATA statement used:
real time 0.64 seconds
cpu time 0.03 seconds
18 ;;
19 proc print;
20 title 'Printout of Data - All Data';
21 run;
NOTE: There were 12 observations read from the data set WORK.REG.
NOTE: PROCEDURE PRINT used:
real time 0.97 seconds
cpu time 0.03 seconds
22 proc reg;
23 model y=x;
24 title 'Regression on All Data - Reps Kept Separate';
25 run;
NOTE: 12 observations read.
NOTE: 12 observations used in computations.
NOTE: PROCEDURE REG used:
real time 0.55 seconds
cpu time 0.04 seconds
26 proc sort;
27 by x;
NOTE: There were 12 observations read from the data set WORK.REG.
NOTE: The data set WORK.REG has 12 observations and 4 variables.
NOTE: PROCEDURE SORT used:
real time 0.08 seconds
cpu time 0.00 seconds
28 proc means mean noprint;
29 by x;
30 var y;
31 output out=new mean=meany;
32 *Comment: The previous statement takes the average of Y1 and Y2 to create
33 a new variable Y. Performing regression on means provides a better
34 coefficient of determination';
35 run;
NOTE: There were 12 observations read from the data set WORK.REG.
NOTE: The data set WORK.NEW has 6 observations and 4 variables.
NOTE: PROCEDURE MEANS used:
real time 0.18 seconds
cpu time 0.03 seconds
36 proc reg;
37 model meany=x;
38 title 'Regression on the Mean of Y';
39 run;
WARNING: The variable _NAME_ or _TYPE_ exists in a data set that is not TYPE=CORR, COV, SSCP,
etc.
NOTE: 6 observations read.
NOTE: 6 observations used in computations.