 variable
   (pilog
      (quote
         @Nr 2
         @Year (cons (date 2007 1 1) (date 2007 12 31))
         (select (@Pos)
            ((nr +Item @Nr (itm +Pos)) (dat +Ord @Year pos))
            (same @Nr @Pos itm nr)
            (range @Year @Pos ord dat) ) )
      (inc 'Cnt (get @Pos 'cnt)) )  # Increment total count
   Cnt )  # Return count
</pre>


<p><hr>
<h3><a id="filpr">Filter Predicates</a></h3>

<p>As mentioned under <a href="#filcl">Filter Clauses</a>, some predicates
exists mainly for <cod