simulat: Sample simulation

In paleoMAS: Paleoecological Analysis

Description

This function simulates new samples based on known percentages

Usage

simulat(x, pop = 10000, nsamples = 10, ssample = 300)

Arguments

x	Relative frequencies of taxa in the sample of interest. It should correspond to a row in a matrix where species are in columns and samples in rows.
pop	Size of the population to be simulated.
nsamples	Number of samples to be drawn.
ssample	Sample size.

Details

A population of size pop and relative frequencies x is simulated, and randomly sampled to produce nsamples new samples. This procedure assumes that the percentages contained in x represent the real population.

Value

Returns a matrix samples that contains simulated samples in rows and species in columns.

Author(s)

Alexander Correa-Metrio, Kenneth R. Cabrera.

References

Correa-Metrio, A., K.R. Cabrera, and M.B. Bush. 2010. Quantifying ecological change through discriminant analysis: a paleoecological example from the Peruvian Amazon. Journal of Vegetation Science 21: 695-704.

Examples

# data from lake Quexil (Leyden et al 1994)
data(quexilper)
simulat(quexilper[1,])

paleoMAS documentation built on May 2, 2019, 6:46 a.m.