krogel/papers/aggs.pdf}
 }
 </pre>
 <p/>
 <!-- technical-bibtex-end -->

 <!-- options-start -->
 Valid options are: <p/>
 
 <pre> -D
  Turns on output of debugging information.</pre>
 
 <pre> -R &lt;index1,index2-index4,...&gt;
  Specify list of string attributes to convert to words.
  (default: select all relational attributes)</pre>
 
 <pre> -V
  Inverts the matching sense of the selection.</pre>
 
 <pre> -C &lt;num&gt;
  Max. cardinality of nominal attributes. If a nominal attribute
  has more values th