Print a report of monthly temperatures for each city. The BY statement determines that a separate report is generated for each city. Thus, the REPORT procedure generates three pieces of output. To assign anchor locations to this new output, ODS increments the last anchor name that was used (IDX), and therefore assigns the anchor names IDX1, IDX2, and IDX3 to the output. These are the anchor locations that were specified above as the anchor locations for variable CITYDRILL.
title1 'Monthly Temperatures in #byval(city)';
proc report data=newtemp nowindows;
  by city;
  column city month fahrenheit;
  define city       / noprint group;
  define month      / display group;
  define Fahrenheit / display group;