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Gives a measure of the species diversity in the fossil data.
Hill.N2.core(spp)
Minimum, first quartile and median effective number of species
Species data
Richard Telford
Uses Hill.N2 from the rioja package
Hill.N2
Hill, M. O. (1973) Diversity and evenness: a unifying notation and its consequences. Ecology 54: 427--432.
require(rioja) data(RLGH) Hill.N2.core(RLGH$spec)
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