1          OPTIONS NONOTES NOSTIMER NOSOURCE NOSYNTAXCHECK;
 72         
 73         /* product.sas  */
 74         title  "Test H0: beta1 * beta2 = 0 on the SAT data";
 75         
 76         
 77         data PennState;
 78              infile '/folders/myfolders/441s18/Lecture/openSAT.data.txt' firstobs=2;
 79              input id verbal math gpa;             /* Skipping the header */
 80         
 
 NOTE: The infile '/folders/myfolders/441s18/Lecture/openSAT.data.txt' is:
       Filename=/folders/myfolders/441s18/Lecture/openSAT.data.txt,
       Owner Name=root,Group Name=vboxsf,
       Access Permission=-rwxrwx---,
       Last Modified=06Jan2017:09:41:47,
       File Size (bytes)=3618
 
 NOTE: 200 records were read from the infile '/folders/myfolders/441s18/Lecture/openSAT.data.txt'.
       The minimum record length was 16.
       The maximum record length was 16.
 NOTE: The data set WORK.PENNSTATE has 200 observations and 4 variables.
 NOTE: DATA statement used (Total process time):
       real time           0.00 seconds
       cpu time            0.00 seconds
       
 81         proc reg plots=none;
 
 82              title2 'Proc reg to get starting values';     
 83              model gpa = verbal math;
 84         
 
 NOTE: PROCEDURE REG used (Total process time):
       real time           0.09 seconds
       cpu time            0.07 seconds
       
 85         proc nlmixed ;
 
 86            title2 "Testing H0: beta1 beta2 = 0";
 87            parms beta0 = 0.60807  beta1 = 0.00231  beta2 = 0.00099736  sigmasq = 0.30069;
 88            L = beta0 + beta1*verbal + beta2*math;
 89            model gpa ~ normal(L,sigmasq);
 90            contrast 'Product' beta1*beta2;
 91         run;
 
 NOTE: Convergence criterion (GCONV=1E-8) satisfied.
 NOTE: At least one element of the gradient is greater than 1e-3.
 NOTE: PROCEDURE NLMIXED used (Total process time):
       real time           0.10 seconds
       cpu time            0.08 seconds
       
 
 92         
 93         
 94         
 95         
 96         
 97         
 98         OPTIONS NONOTES NOSTIMER NOSOURCE NOSYNTAXCHECK;
 111