Gini-Simpson Index
Arguments
- x
A non-negative numeric vector.
- na.rm
A logical vector that indicates whether
NA
values should be excluded or not. Must be eitherTRUE
orFALSE
. The default isTRUE
. If set toFALSE
the computation yieldsNA
ifNA
values are present.
Details
concstats_simpson
is the Gini-Simpson index, also known as
the Gini impurity (Gini's diversity index) in Machine Learning, Gibbs-Martin
index or Blau index in sociology and management studies. This index ranges
from (0, 1).
References
Simpson, E. H. (1949). "Measurement of Diversity", Nature, 163, 688.
Jost, L. (2006). "Entropy and Diversity". Oikos, 113(2), 363-375.
See also
Other Concentration and inequality measures:
concstats_all_inequ()
,
concstats_entropy()
,
concstats_gini()
,
concstats_grs()
,
concstats_inequ()
,
concstats_palma()