TY - JOUR AU - Wang, Ji-Ping PY - 2011/04/25 Y2 - 2024/03/29 TI - SPECIES: An R Package for Species Richness Estimation JF - Journal of Statistical Software JA - J. Stat. Soft. VL - 40 IS - 9 SE - Articles DO - 10.18637/jss.v040.i09 UR - https://www.jstatsoft.org/index.php/jss/article/view/v040i09 SP - 1 - 15 AB - We introduce an R package <b>SPECIES</b> for species richness or diversity estimation. This package provides simple R functions to compute point and confidence 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 efficiency. All functions in this package are illustrated using real data sets. ER -