Time Series Analysis Package

This example uses the TSMODEL procedure to accumulate a monthly time series into a yearly time series:

proc tsmodel data=mycas.air outarray=mycas.outarray;
   id date interval=month;
   var air;
   outarrays yearavg_expand yearid_expand;
   require tsa;
   submit;
   declare object TSA(tsa);
   rc=TSA.ACCUMULATE2(date, air, 'YEAR', yearid_expand, yearavg_expand,
                      'AVERAGE', , );
   endsubmit;
run;