1          OPTIONS NONOTES NOSTIMER NOSOURCE NOSYNTAXCHECK;
 68         
 69         /********************* senic1.sas ***************************/
 70         title 'Open SENIC Data';
 71         title2 'Basic Descriptive Statistics';
 72         
 73         proc format;
 73       !               /* Value labels used in data step below */
 74              value yesnofmt 1 = 'Yes'   0 = 'No' ;
 NOTE: Format YESNOFMT is already on the library WORK.FORMATS.
 NOTE: Format YESNOFMT has been output.
 75              value regfmt  1 =  'Northeast'
 76                            2 =  'North Central'
 77                            3 =  'South'
 78                            4 =  'West' ;
 NOTE: Format REGFMT is already on the library WORK.FORMATS.
 NOTE: Format REGFMT has been output.
 79         
 
 NOTE: PROCEDURE FORMAT used (Total process time):
       real time           0.00 seconds
       user cpu time       0.00 seconds
       system cpu time     0.00 seconds
       memory              248.00k
       OS Memory           21152.00k
       Timestamp           12/21/2023 05:08:04 PM
       Step Count                        59  Switch Count  0
       Page Faults                       0
       Page Reclaims                     19
       Page Swaps                        0
       Voluntary Context Switches        0
       Involuntary Context Switches      0
       Block Input Operations            0
       Block Output Operations           32
       
 
 80         data senic;
 81              infile '/home/u1407221/441s24/SAS02/openSENIC2.data.txt' firstobs=2;
 82                                           /* Skip the first line that R uses */
 83              input   id region mdschl $ census nbeds nurses lngstay age
 84                      xratio culratio infpercent;
 85         
 86              /* Fix up problems */
 87              if mdschl = '?' then mdschl = ' '; /* Blank = missing for character vars */
 88              if age = 999 then age = .;
 89              if infpercent = 999 then infpercent = .;
 90         
 91              /***** Recodes, computes & ifs  *****/
 92              if 0<age<=53 then agecat = '53 & under';
 93              else if age>53 then agecat='Over 53';
 94              label   agecat = 'Average patient age';
 95              quality=(2*nurses+nbeds+10*culratio
 96                           +10*xratio-2*lngstay);
 97              if mdschl eq 'No' then quality=quality/2;
 98              if (region eq 3) then quality=quality-100;
 99              label quality = 'Jerry''s bogus hospital quality index';
 100        
 
 NOTE: The infile '/home/u1407221/441s24/SAS02/openSENIC2.data.txt' is:
       Filename=/home/u1407221/441s24/SAS02/openSENIC2.data.txt,
       Owner Name=u1407221,Group Name=oda,
       Access Permission=-rw-r--r--,
       Last Modified=21Dec2023:11:37:19,
       File Size (bytes)=8585
 
 NOTE: 100 records were read from the infile '/home/u1407221/441s24/SAS02/openSENIC2.data.txt'.
       The minimum record length was 83.
       The maximum record length was 83.
 NOTE: Missing values were generated as a result of performing an operation on missing values.
       Each place is given by: (Number of times) at (Line):(Column).
       3 at 95:16   3 at 97:44   2 at 98:43   
 NOTE: The data set WORK.SENIC has 100 observations and 13 variables.
 NOTE: DATA statement used (Total process time):
       real time           0.00 seconds
       user cpu time       0.01 seconds
       system cpu time     0.00 seconds
       memory              781.37k
       OS Memory           21668.00k
       Timestamp           12/21/2023 05:08:04 PM
       Step Count                        60  Switch Count  2
       Page Faults                       0
       Page Reclaims                     137
       Page Swaps                        0
       Voluntary Context Switches        20
       Involuntary Context Switches      0
       Block Input Operations            0
       Block Output Operations           272
       
 
 101        proc freq;
 102             title3 'Frequency distributions of categorical variables';
 103             tables region mdschl agecat;
 104        
 
 NOTE: There were 100 observations read from the data set WORK.SENIC.
 NOTE: PROCEDURE FREQ used (Total process time):
       real time           0.02 seconds
       user cpu time       0.02 seconds
       system cpu time     0.00 seconds
       memory              1789.00k
       OS Memory           22184.00k
       Timestamp           12/21/2023 05:08:04 PM
       Step Count                        61  Switch Count  3
       Page Faults                       0
       Page Reclaims                     245
       Page Swaps                        0
       Voluntary Context Switches        19
       Involuntary Context Switches      0
       Block Input Operations            0
       Block Output Operations           272
       
 
 105        proc means;
 106             title3 'Table of means and standard deviations';
 107             var census nbeds nurses lngstay age xratio culratio infpercent
 108             quality;
 109        
 110        /* How did SAS handle the missing value for age? */
 111        
 
 NOTE: There were 100 observations read from the data set WORK.SENIC.
 NOTE: PROCEDURE MEANS used (Total process time):
       real time           0.03 seconds
       user cpu time       0.03 seconds
       system cpu time     0.01 seconds
       memory              6473.75k
       OS Memory           27576.00k
       Timestamp           12/21/2023 05:08:04 PM
       Step Count                        62  Switch Count  2
       Page Faults                       0
       Page Reclaims                     1454
       Page Swaps                        0
       Voluntary Context Switches        26
       Involuntary Context Switches      0
       Block Input Operations            0
       Block Output Operations           0
       
 
 112        proc freq;
 113             title3 'Check missing value for age';
 114             tables age * agecat / norow nocol nopercent missing;
 115        
 116        run;
 
 NOTE: There were 100 observations read from the data set WORK.SENIC.
 NOTE: PROCEDURE FREQ used (Total process time):
       real time           0.14 seconds
       user cpu time       0.15 seconds
       system cpu time     0.00 seconds
       memory              1238.31k
       OS Memory           22956.00k
       Timestamp           12/21/2023 05:08:04 PM
       Step Count                        63  Switch Count  5
       Page Faults                       0
       Page Reclaims                     227
       Page Swaps                        0
       Voluntary Context Switches        35
       Involuntary Context Switches      0
       Block Input Operations            0
       Block Output Operations           600
       
 
 117        
 118        OPTIONS NONOTES NOSTIMER NOSOURCE NOSYNTAXCHECK;
 128