- ?p[n]=[x] -- Where n=0->2, and x is a number to force the fitting parameters (incumbency advantage, swing parameter, and GCB). Default: Measured by the polls.
- ?twindow=[days] -- Set the window for polls an approximate maximum of [days]. Default: 21 (Note: I've shortened this as we get closer to the election). I use a Gaussian weighting, so that polls "twindow" days ago are only weighted about 40% as much as those taken today. At twice that (6 weeks ago), they're only weighted about 2%, and barely at all further out from that.
- ?sigma=[sig] -- Set the global error range (in the polling). Default: 3