DATA lotsize1;               /* Creates dataset called 'lotsize1' */
                             /* All SAS statements end in a semicolon */
                             /* Blank lines and spaces are ignored  */
        INPUT size hours;    /* Creates variables */
        DATALINES;           /* This keyword tells SAS that data will follow */
    80  399
    30  121
    50  221
    90  376
    70  361
    60  224
   120  546
    80  352
   100  353
    50  157
    40  160
    70  252
    90  389
    20  113
   110  435
   100  420
    30  212
    50  268
    90  377
   110  421
    30  273
    90  468
    40  244
    80  342
    70  323
    ;                            /* End of input */

PROC MEANS DATA=lotsize1;        /* A SAS procedure */
        VAR size hours;          
        RUN;                     /* End of PROC step */

PROC CORR DATA=lotsize1;         /* Another SAS procedure */
        VAR hours size;
        RUN;                     /* End of PROC step */

PROC REG DATA=lotsize1;          
        MODEL hours = size;
        RUN;

DATA lotsize2;                   /* Creates another dataset */
        SET lotsize1;
        X=size;                  /* New variables are created */
        Y=hours;
        Xc = X-70.0; Yc = Y-312.28;   /* Multiple operations in one line */
        Xcsq = Xc*Xc; Ycsq = Yc*Yc; XcYc = Xc*Yc;  
        RUN;

PROC PRINT DATA=lotsize2;
        VAR X Y Xc Yc Xcsq Ycsq XcYc;
        SUM X Y Xc Yc Xcsq Ycsq XcYc;
        RUN;

QUIT;