preseqR.nonreplace.sampling | R Documentation |
Generating a histogram by subsampling without replacement.
preseqR.nonreplace.sampling(n, size)
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 represented exactly j times in the initial sample. The first column must be sorted in an ascending order. |
size |
An positive integer representing the size of the subsample. |
preseqR.nonreplace.sampling
generates a subsample by sampling the
initial sample without replacement.
sample
in R is used to implement the function. We wrap up
this function in such a way that both the input and the output are histograms.
A two-column matrix as a subsample. The first column is the frequency j = 1,2,…; and the second column is N_j, the number of species represented j times in the subsample.
Chao Deng
https://stat.ethz.ch/R-manual/R-patched/library/base/html/sample.html
## load library library(preseqR) ## import data data(FisherButterfly) ## generate a subsample of size 1000. preseqR.nonreplace.sampling(n=FisherButterfly, size=1000)
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