Go implementation of Banzhaf power index calculation.
The Banzhaf power index is one way to measure voting power in a weighted voting system. This package provides an algorithm which calculates absolute and normalized Banzhaf voting power indices. The Banzhaf and other power indices from cooperative game theory have a sizeable literature: see some leads in the references section below.
Given a weighted voting system with a quota and weights, use the Banzhaf function to get a list of power index calculations.
weights := []uint64{2, 2, 2, 1}
quota := uint64(4)
absolute := true
index, err := Banzhaf(weights, quota, absolute)
if err != nil {
// error
}
For debugging purposes, you can enable a progress bar which will be output to the standard error.
banzhaf.ProgressBar = true
- Are blockchain voters 'dummies'? by @jbrukh.
- Using generator functions to compute power indices by Brian Hegers
- https://gist.github.com/HeinrichHartmann/8ec2e2245f2a70441257 by Heinrich Hartmann