*Copyright @ www.statschoice.com;

/********************************************************************************

Create a new variable based on the values present in another variable - if then else

********************************************************************************/

data output;
      set class;
      length asex $6;
      if sex="M" then asex="Male";
      else if sex="F" then asex="Female";
  run;

/********************************************************************************

Create two new variables based on the values present in another variable - if then do

********************************************************************************/

data output;
      set class;
      length asex $6;
      if sex="M" then do;
          asex="Male";asexn=1;
      end;
      else if sex="F" then do;
          asex="Female";
          asexn=2;
      end;
  run;

/********************************************************************************

Create a new variable based on the values present in another variable - select when

********************************************************************************/

data output;
      set class;
      length asex $6;
      select(sex);
          when ("M") asex="Male" ;
          when ("F") asex="Female";
          otherwise;
      end;
  run;

/********************************************************************************

Create two new variables based on the values present in another variable - select when do

********************************************************************************/

data output;
      set class;
      length asex $6;
      select(sex);
          when ("M") do; asex="Male"; asexn=1; end;
          when ("F") do; asex="Female"; asexn=2; end;
          otherwise;
      end;
  run;