margalef | R Documentation |
Margalef Index of Diversity is given by
D = (S-1)/ln(N)
For N=1, the index is set to 0.
margalef(.data = NULL, taxon, count) margalef_(.data = NULL, taxon, count)
.data |
data in a |
taxon |
taxa names ( |
count |
counts ( |
Margalef diversity index (numeric
vector
of length 1)
margalef_()
: version suitable for calling from a function
(see package lazyeval).
margalef( taxon = c("Euspira pulchella", "Nephtys cirrosa"), count = c(4, 6) )
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