Calculate polarization
Calculates polarization, based on measure of agreement A
polarization(V, old = FALSE)
V |
A frequency vector |
old |
Specify |
This function calculates polarization by re-scaling agreement A introduced by Cees van der Eijk. Whereas agreement A ranges from -1 to 1, polarization ranges from 0 to 1. If all observations are in the same category, polarization is 0. With half the observations in one category, and half the observations in a different (non-neighbouring) category, polarization is 1. Polarization is 0.5 for a uniform distribution over all categories.
The function returns a polarization score
Didier Ruedin
V <- c(30,40,210,130,530,50,10) # Calculate polarization polarization(V) # The rate of polarization is given as 0.1943333
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