Poll Average Details- MG Senate - 2018-10-07 23:50:00

The Poll Average is a weighted and adjusted number.
[Mid Date Column] All times are calculated by the middle date of the poll if it spans multiple days.
A time window of 2 months prior to the most recent poll is used.
[Time Weight Column] Polls are weighted in the amount they contribute to the final results in a linear fashion in this time window - the newest poll has a weight of 1, a poll 30 days prior will have a weight of 0.5 and a poll 60 days out will have a weight of 0. If the same pollster has more than one poll in this time period, only the newest will be used.
[Internal Column] If a poll is marked as being an internal poll for one of the candidates, it's weight will be halved.
[Candidate Columns, Bias] OurCampaigns has calculated partisan bias figures for all Polling Firms based on data from final vote totals in races they have polled. These amounts are subtracted from the poll result - in the case the bias figure is negative it will effectively be added to the poll result and appear as two dashes (minus a negative = plus). [TOTAL Row] The adjusted weights are summed for each poll result and the adjusted poll results for each candidate are multiplied by the poll weight and then summed. Each candidate's poll sum is divided by their weight sum to give the total.

Poll	Mid Date	Time Weight	Internal	Dilma Rousseff	Carlos Viana	Dinis Pinheiro	Rodrigo Paiva	Rodrigo Pacheco	Fábio Cherem	Miguel Correa	Elio Antonio Lacerda "Coronel Lacerda"	Túlio Lopes	Alcindor Ribeiro Damasceno "Bispo Damasceno"	Vanessa Portugal	Duda Salabert	Ana Alves	Edson André dos Reis	Kaká Menezes
Ibope	10/1	X 1.00000		29.0000 - -0.2874 bias	17.0000 - -0.0762 bias	14.0000 - -2.1609 bias	7.0000 - -4.5343 bias	15.0000 - 2.7917 bias	10.0000 - -0.4793 bias	5.0000 - -0.2874 bias	5.0000 - 1.2650 bias	4.0000 - 0.8699 bias	4.0000 - 1.2650 bias	2.0000 - 0.8087 bias	2.0000 - -0.6257 bias	3.0000 - 1.0851 bias	1.0000 - 0.9041 bias	2.0000 - 1.0100 bias
Datafolha	9/19	X 0.80000		29.0000 - 0.3983 bias	14.0000 - -5.2076 bias	10.0000 - -4.2050 bias	7.0000 - -4.0657 bias	13.0000 - 3.3500 bias	7.0000 - -0.3661 bias	6.0000 - 0.3983 bias	6.0000 - 1.8858 bias	5.0000 - 1.8033 bias	5.0000 - 1.8858 bias	5.0000 - 0.8440 bias	1.0000 - -0.5795 bias		1.0000 - 0.1064 bias	2.0000 - 2.3591 bias
TOTAL				28.982644	18.023489	15.291611	11.326033	11.071278	9.095656	5.427089	3.903533	3.159700	2.903533	2.508944	2.160722	1.914900	0.450433	0.390400