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4 Functions


               SAS has  a  wide  variety  of  in  built functions which  help  in  analyzing  and  processing  the  data.
               These functions are used as part of the DATA statements. They take the data variables as arguments
               and return the result which is stored into another variable.

               4.1 Numeric function


                                                Purpose:                                      Syntax
                   Sum                    Used to find out summation                      sum(n1,n2,n3….,nn);
                   Max                 Used to find out maximum value                     max(n1,n2,n3….,nn);
                   Min                  Used to find out minimum value                    min(n1,n2,n3….,nn);

                  Mean                     Used to find out average                       avg(n1,n2,n3….,nn);

               Program 4.1:                                                                               Out put
























               By observing the output window you may have a doubt that why total and avg_1 variable has missing
               value.so that is the advantage of sum and mean function that it also take the missing value which is the
               disadvantage of using an operator.






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