gammaContrastTest3: Test for difference in gamma diversity among three datasets

Description Usage Arguments Value References See Also

Description

The null hypothesis for this tests is that there is no difference in gamma diversity between the three datasets in tab.a, tab.b and and tab.c. The method was described in Scofield et al. (2012). There currently is no support for contrasting allelic data.

Usage

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## S3 method for class 'divtable'
gammaContrastTest3(tab.a, tab.b, tab.c,
  zero.div.adjust = TRUE, n.resample = 10000, method = c("bootstrap",
  "permute"), test.quantiles = c(0.001, 0.01, 0.05, 0.1, 0.5, 0.9, 0.95, 0.99,
  0.999), ...)

## Default S3 method:
gammaContrastTest3(tab.a, tab.b, tab.c, ...)

Arguments

tab.a

Site-by-source table of class divtable

tab.b

Site-by-source table of class divtable

tab.c

Site-by-source table of class divtable

zero.div.adjust

Logical, if TRUE (the default), then groups with 0 within-group diversity are assigned a minimum diversity which is half the empirical diversity possible given the group size

n.resample

Number of iterations for creation of the null distribution

method

"bootstrap" or "permute", whether to create null distribution iterations with ("bootstrap") or without ("permute") replacement

Value

Class diversity_test object with the result of the test

References

Scofield, D. G., Smouse, P. E., Karubian, J. and Sork, V. L. (2012) Use of alpha, beta and gamma diversity measures to characterize seed dispersal by animals. American Naturalist 180:719-732.

See Also

gammaContrastTest, alphaContrastTest3


douglasgscofield/dispersalDiversity documentation built on March 30, 2021, 9:50 a.m.