1          OPTIONS NONOTES NOSTIMER NOSOURCE NOSYNTAXCHECK;
 72         
 73         /************************ mathpeek.sas *************************/
 74         title 'Prediction of Performance in First-year Calculus';
 75         title2 'Read data and locate problems';
 76         
 77         data math;
 78              infile '/home/u1407221/441s24/data/math.data.txt';
 79              input id course precalc calc gpa calculus english mark lang $ sex $
 80                    nation1 nation2 sample;
 81         
 82         /* proc contents; */
 83         
 84         
 
 NOTE: The infile '/home/u1407221/441s24/data/math.data.txt' is:
       Filename=/home/u1407221/441s24/data/math.data.txt,
       Owner Name=u1407221,Group Name=oda,
       Access Permission=-rw-r--r--,
       Last Modified=10Feb2024:16:04:10,
       File Size (bytes)=90324
 
 NOTE: 1158 records were read from the infile '/home/u1407221/441s24/data/math.data.txt'.
       The minimum record length was 76.
       The maximum record length was 76.
 NOTE: The data set WORK.MATH has 1158 observations and 13 variables.
 NOTE: DATA statement used (Total process time):
       real time           0.03 seconds
       user cpu time       0.00 seconds
       system cpu time     0.00 seconds
       memory              786.68k
       OS Memory           25512.00k
       Timestamp           02/10/2024 09:04:43 PM
       Step Count                        24  Switch Count  2
       Page Faults                       0
       Page Reclaims                     186
       Page Swaps                        0
       Voluntary Context Switches        23
       Involuntary Context Switches      0
       Block Input Operations            184
       Block Output Operations           264
       
 
 85         proc freq data=math;
 86              title3 'Frequency distributions of all variables'; /* Don't print this! */
 87              tables _all_;
 88         
 89         /* After looking at frequency distributions, locate problem cases if necessary */
 90         
 
 NOTE: There were 1158 observations read from the data set WORK.MATH.
 NOTE: PROCEDURE FREQ used (Total process time):
       real time           0.82 seconds
       user cpu time       0.81 seconds
       system cpu time     0.01 seconds
       memory              7935.37k
       OS Memory           33452.00k
       Timestamp           02/10/2024 09:04:44 PM
       Step Count                        25  Switch Count  4
       Page Faults                       0
       Page Reclaims                     2391
       Page Swaps                        0
       Voluntary Context Switches        24
       Involuntary Context Switches      1
       Block Input Operations            0
       Block Output Operations           904
       
 
 91         proc print data=math;
 92               title3 'Strange marks in HS English';
 93               where english=0 or english > 100;
 94         
 
 NOTE: There were 11 observations read from the data set WORK.MATH.
       WHERE (english=0) or (english>100);
 NOTE: PROCEDURE PRINT used (Total process time):
       real time           0.03 seconds
       user cpu time       0.03 seconds
       system cpu time     0.01 seconds
       memory              1001.43k
       OS Memory           32940.00k
       Timestamp           02/10/2024 09:04:44 PM
       Step Count                        26  Switch Count  1
       Page Faults                       0
       Page Reclaims                     234
       Page Swaps                        0
       Voluntary Context Switches        8
       Involuntary Context Switches      0
       Block Input Operations            0
       Block Output Operations           32
       
 
 95         proc print data=math;
 96               title3 'Students with Strange High School Marks';
 97               where gpa = 0 or
 98                     english=0 or english > 100  or
 99                     calculus=0 or calculus>100;
 100        
 101        
 102        
 103        OPTIONS NONOTES NOSTIMER NOSOURCE NOSYNTAXCHECK;
 115