SPECIES: An r package for species richness estimation

Ji Ping Wang*

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

47 Scopus citations


We introduce an R package SPECIES for species richness or diversity estimation. This package provides simple R functions to compute point and condence interval estimates of species number from a few nonparametric and semi-parametric methods. For the methods based on nonparametric maximum likelihood estimation, the R functions are wrappers for Fortran codes for better eciency. All functions in this package are illustrated using real data sets.

Original languageEnglish (US)
Pages (from-to)1-15
Number of pages15
JournalJournal of Statistical Software
Issue number9
StatePublished - Apr 2011


  • Coverage
  • Jackknife
  • Nonparametric maximum likelihood estimation
  • R software
  • Species problem
  • Species richness estimation

ASJC Scopus subject areas

  • Software
  • Statistics and Probability
  • Statistics, Probability and Uncertainty


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