| boneh.mincount {preseqR} | R Documentation |
The function estimates the expected number of species represented at least r times in a random sample based on the initial sample using a nonparametric approach by Boneh et al. (1998).
boneh.mincount(n, r=1)
n |
A two-column matrix. The first column is the frequency j = 1,2,…; and the second column is n_j, the number of species with each species represented j times in the initial sample. The first column must be sorted in an ascending order. |
r |
A vector of positive integers. Default is 1. |
The constructed estimator for the number of species represneted at least r times in a sample. The input of the estimator is a vector of sampling efforts t, i.e. the relative sample sizes comparing with the initial sample. For example, t = 2 means the sample is twice the size of the initial sample.
Chao Deng
Boneh, S., Boneh, A., & Caron, R. J. (1998). Estimating the prediction function and the number of unseen species in sampling with replacement. Journal of the American Statistical Association, 93(441), 372-379.
## load library library(preseqR) ## import data data(FisherButterflyHist) ## construct the estimator for the number of species ## represented at least once, twice or three times in a sample boneh.estimator <- boneh.mincount(FisherButterflyHist, r=1:3) ## The number of species represented at least once, twice or three times ## when the sample size is 10 or 20 times of the initial sample boneh.estimator(c(10, 20))