popAddTrend: Add Trend to Polls

In petres/pollofpolls: Loading and Analyzing Polls

Description

Add Trend to Polls

Usage

popAddTrend(data, name = NULL, type = "kalman", args = list(),
  interpolations = list())

Arguments

data	polls object
name	trend name
type	trend function name
args	trend function arguments
interpolations	list of interpolations that should be applied to the trend

Details

Available trend function names are:

kalman - arguments: sd = 0.03

weightedMeanLastDays - arguments: days = 30, maxObs = Inf

Available interpolations are:

lastInterpolation - no arguments.

linearInterpolation - no arguments.

bernoulliConvInterpolation - arguments: n = 20, k = 6

Value

polls object

Examples

t = popRead('DE-parliament')
t = popAddTrend(t, name='Kalman 0.003', type='kalman', args=list(sd = 0.003))
t = popAddTrend(t, name='Kalman Raw', type='kalman', args=list(sd = 0.003),
                interpolations=list('lastInterpolation' = list()))
plot(t)

petres/pollofpolls documentation built on May 15, 2019, 3:20 p.m.