search for: ginicoefficient

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2007 Jun 11
1
Gini coefficient in R
If I use the Ineq library and the Gini function in this way: >Gini(c(100,0,0,0)) I obtain the result 0.75 instead of 1 (that is the perfect inequality). I think Gini's formula in Ineq is based on a formula as reported here: http://mathworld.wolfram.com/GiniCoefficient.html but in the case of perfect inequality: x_1=.......=x_n-1 =0 x_n>0 these formula are equal to 1 - 1/n, not to 1. ....I don't know where I'm wrong.... -- Michele De Meo http://micheledemeo.blogspot.com/ [[alternative HTML version deleted]]