theil {REAT} | R Documentation |
Calculating the Theil inequality index
theil(x, weighting = NULL, na.rm = TRUE)
x |
a |
weighting |
a |
na.rm |
logical argument that indicates whether NA values should be excluded before computing results |
Since there are several Theil measures of inequality, this function uses the formulation from Stoermann (2009).
A single numeric value of the Theil inequality index (0 < TI < 1
).
Thomas Wieland
Portnov, B.A./Felsenstein, D. (2010): “On the suitability of income inequality measures for regional analysis: Some evidence from simulation analysis and bootstrapping tests”. In: Socio-Economic Planning Sciences, 44, 4, p. 212-219.
Stoermann, W. (2009): “Regionaloekonomik: Theorie und Politik”. Muenchen : Oldenbourg.
# Example from Stoermann (2009):
regincome <- c(10,10,10,20,50)
theil(regincome)
# 0.2326302