title: SAS Drop Condition Output - Not enough variables observed in Output
body: <p>I am learning drop_conditions in SAS. I am requesting a sample on three variables, however only two observations are retrieved. Please advise! Thank you!</p>
  
  <pre><code>data temp;
  set mydata.ames_housing_data;
  format drop condition $30.;
  if (LotArea in (7000:9000)) then drop_condition = '01: Between 7000-9000 sqft';
  else if (LotShape EQ 'IR3') then drop_condition = '02: Irregular Shape of Property';
  else if (condition1 in 'Artery' OR 'Feedr') then drop_condition = '03: Proximity to arterial/feeder ST';
  
  run;
  
  proc freq data=temp;
  tables drop_condition;
  title 'Sample Waterfall';
  run; quit;
  </code></pre>
  
  <p><a href="https://i.stack.imgur.com/CJy2Q.png" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/CJy2Q.png" alt="OUTPUT"></a></p>