Wikipedia
Psepholograph
A psepholograph (from the words psephology and graph) is a graphical representation of political opinion poll results showing electorate-by-electorate results, rather than reporting polls in percentages of the survey total. The psepholograph more accurately shows the results of non-uniform swings, and translates the results into an electoral effect on a multi-party system allowing for several simultaneous trends. The psepholograph was developed in Australia in 1992 by Matt Balogh, and succeeds the Electoral Pendulum, developed by Malcolm Mackerras. It allows political analysts to graphically communicate the complexity of election results to the media and public.