/* The following from section 2.3                           */
          /* Assume sasclass has already been associated with c:\temp */
          /* Use the CONTENTS procedure to get an overview of         */
          /*             the data set                                 */

          PROC CONTENTS DATA = sasclass.bankdata ;

          /* Print out the data */
          PROC PRINT DATA = sasclass.bankdata ;
          RUN ;

          /* From section 3.1                     */
          /* Get the numbers of males and females */

          PROC FREQ DATA = sasclass.bankdata ;
              TABLES gender ;
          PROC MEANS DATA = sasclass.bankdata ;
               VAR salary ;
          RUN ;

          /* From section 3.2                           */
          /* Recode the missing values                  */
		  /* Create the new dataset bankdata2           */
          /* Temporary datasets are stored in the WORK  */
		  /* library and are deleted at the end of the  */
		  /* SAS session                                */
           DATA bankdata2; set sasclass.bankdata ; 
             MISSING X; 
             IF jobcat = "X" THEN jobcat =. ; 
             IF gender = " " THEN gender =. ; 
             RUN ; 
           PROC FREQ ; TABLES jobcat gender ; RUN; 

          /* Section 3.3                          */
          /* Add labels to the bankdata2 data set */
          PROC DATASETS library = sasclass ;
             MODIFY bankdata2 ;
             LABEL gender = "Respondant's Sex"
                   educ = 'Number of years of education'
                   preexp = 'Previous experience (months)'
                   bdate = 'Birth year of the respondent'
                   jobtime = 'Months since hired'
                   salary = "Respondent's salary" ;
          RUN ;


          /* Get the frequency on gender                           */
          PROC FREQ DATA = bankdata2 ;
               TABLES gender ;
          /* Get the means of several variables (with new labels ) */
          PROC MEANS DATA = bankdata2 ;
               VAR educ preexp bdate jobtime salary ;
          RUN ;

          /* Section 4                                             */
          /* Sort the data by gender                               */
          PROC SORT DATA = bankdata2 ;
               BY gender ;
          /* print the sorted data */
          PROC PRINT DATA = bankdata2 ;
               BY gender ;

          /* Get a crosstabs on salary/gender */
          PROC FREQ ;
               TABLES salary * gender ;


          PROC SORT DATA = bankdata2 ;
               BY gender ;
          PROC MEANS DATA = bankdata2 ;
               BY gender ;
               VAR salary ;
          RUN ;
          /* create a permanent dataset called  */
		  /* bankdata3 in the sasclass library  */
          /* Add a new variable to the data set */
          DATA sasclass.bankdata3 ;
               SET bankdata2 ;
               IF educ GT 0 and educ LT 12 THEN educ2 = 1 ;
               ELSE IF educ GE 12 AND educ LE 15 THEN educ2 = 2 ;
               ELSE IF educ GE 16 THEN educ2 = 3 ;

          /* Check out the new variable */
          PROC FREQ ;
               TABLES educ ;
               TABLES educ2 ;
          RUN ;

          /* Does salary vary by education level */
          PROC SORT DATA = sasclass.bankdata3 ;
               BY educ2 ;
          PROC MEANS ;
               VAR salary ;
               BY educ2 ;
          RUN ;

          /* A cross tabs with the new variable (educ2) */
          PROC FREQ ;
               TABLES educ2 * gender ;
          RUN ;