errorGradient: errorGradient

In chrisschwer/voterTransition-package: Tries to find a plausible voter transition matrix based on aggregate voting data

Description

This helper function calculates the partial gradient numerically for each element of Transition

Usage

errorGradient(Old, New, Transition, n, p, epsilon = 1e-07)

Arguments

Old	m by n matrix of values for n choices in m districts
New	m by p matrix of values for n choices in m districts
Transition	n by b matrix of transition values, all should be positive, row sums should be one
n	the number of outcomes in Old and the number of rows in Transition, provided for performance reasons
p	the number of outcomes in New and the number of rows in Transition, provided for performance reasons
epsilon	'ε'-value for numerical approximation of gradient, defaults to 0.0000001

chrisschwer/voterTransition-package documentation built on May 13, 2019, 6:56 p.m.