krandtest: Class of the Permutation Tests (in C).

In ade4: Analysis of Ecological Data : Exploratory and Euclidean Methods in Environmental Sciences

Description

Plot and print many permutation tests. Objects of class 'krandtest' are lists.

Usage

## S3 method for class 'krandtest'
plot(x, mfrow = NULL, nclass = NULL, main.title = x$names, ...)
## S3 method for class 'krandtest'
print(x, ...)
as.krandtest(sim, obs, alter = "greater", call =
match.call(), names = colnames(sim), p.adjust.method = "none")

Arguments

x	: an object of class 'krandtest'
mfrow	: a vector of the form 'c(nr,nc)', otherwise computed by as special own function n2mfrow
nclass	: a number of intervals for the histogram
main.title	: a string of character for the main title
...	: further arguments passed to or from other methods
sim	a matrix or data.frame of simulated values (repetitions as rows, number of tests as columns
obs	a numeric vector of observed values for each test
alter	a vector of character specifying the alternative hypothesis for each test. Each element must be one of "greater" (default), "less" or "two-sided". The length must be equal to the length of the vector obs, values are recycled if shorter.
call	a call order
names	a vector of names for tests
p.adjust.method	a string indicating a method for multiple adjustment, see p.adjust.methods for possible choices.

Value

plot.krandtest draws the p simulated values histograms and the position of the observed value.

Author(s)

Daniel Chessel and Stephane Dray [e-mail]

See Also

randtest

Examples

wkrandtest <- as.krandtest(obs=c(0,1.2,2.4,3.4,5.4,20.4),sim=matrix(rnorm(6*200),200,6))
wkrandtest
plot(wkrandtest)

ade4 documentation built on May 2, 2019, 5:50 p.m.