weighted.entropy {acid} | R Documentation |
This function computes the Measures of the Generalised Entropy Family for a vector of observations with corresponding weights.
weighted.entropy(x, w = NULL, alpha = 1)
x |
a vector of observations. |
w |
a vector of weights. |
alpha |
the parameter for the generalised entropy family of measures, denoted by alpha by Cowell (2000). Note that this parameter notation differs from the notation used in the ineq package. |
returns the entropy measure.
Alexander Sohn
Cowell, F.A. (2000): Measurement of Inequality, in: Atkinson and Bourguignon (eds.), Handbook of Income Distribution, pp. 1-86, Elsevier, Amsterdam.
# generate vector (of incomes) x <- c(541, 1463, 2445, 3438, 4437, 5401, 6392, 8304, 11904, 22261) w <- sample(1:2,length(x),replace=TRUE) weighted.entropy(x,w)