title: subset function with "different than"?
body: <p>is it possible to use the subset function by saying sth like subset(dataset, IA_LABEL not equal to "Er" or "Sie" or "Es" or "wird" or  "gleich") ?
  what interests me is the "not equal to" operator, is there something like that for the subset function?</p>
  
  <p>thanks,
  Katerina</p>