title: Execution of data step despite of the errors
body: <p>I am executing the following code to combine a large number of data sets . Here is code:</p>
  
  <pre><code> %macro combine;
   data modelfit;
   set
   %do i = 30 %to 116 %by 3 ;
    stat&amp;i
     %end;
      ;
   %end;
   run;
  %mend;
  %combine;
  </code></pre>
  
  <p>However, few of the data sets are not present. Hence, the data set is failing to execute. How can I prevent the data step from stopping to execute and combine the data sets that are there . Can anybody please help me with this</p>