Bar Chart Window/Icon	

         The Bar Chart Window presents you with a graphic
         display of the Probable Relevance Ranking for the top 
         50 ranked documents.  The top ranked document is given 
         a score of 100.  All other documents are scored in 
         relation to the first document.  Even though a search
         may retrieve more than fifty documents, the Bar Chart 
         will only display the score for the top 50.  (See
         Probable Relevance Ranking in this Help system)

         Clicking once on the Bar Chart Icon, second from left, 
         located on the Lights Toolbox Menu and also on the 
         Show Pulldown Menu, toggles the Bar Chart Window on or 
         off.  The purpose of the Bar Chart is to orient you 
         graphically to the usefulness of the top ranked 
         documents according to the Probable Relevance Ranking.

         The Bar Chart can indicate that a search may be too 
         broad or too narrow, or that there are too few 
         documents that meet the search criteria.  Therefore, 
         you may use the Bar Chart to initially determine 
         the relative value of retrieved documents without 
         having to actually call up the record.