In my world, everyone eligible has to vote. So as not to introduce junk data into the system, 'truncation' or otherwise casting an incomplete vote is allowed.
You may even cast a blank ballot. I like the social responsibility of voting. Everyone should do it. And if people don't want any of the choices on the ballot then we should pay more attention to the blank or none-of-the-above votes. I wish more pundits counted every no-show voter as a vote for none-of-the-above. By that measure most elections in the US are won by a plurality for none-of-the-above. Some even by a full majority. Brian Olson http://bolson.org/ ---- election-methods mailing list - see http://electorama.com/em for list info