Library: | stats |
See also: | plotlorenz |
Quantlet: | lorenz | |
Description: | calculates the measures of concentration of Gini and Herfindahl |
Usage: | lorenz(y) | |
Input: | ||
y (must be positive) | n x 1 vector of original data or n x 2 matrix of classified data: first column = class means second column = frequencies. | |
Output: | ||
Gini | number in [0,1], Gini coefficient | |
Herfindahl | number in [0,1], Herfindahl measure of concentration |
library("stats") x = normal(200) x = abs(x) lorenz(x) y = 1:5 ~ #(2,6,8,5,2) lorenz(y)
returns Gini and Herfindahl coefficients