procuste.randtest: Monte-Carlo Test on the sum of the singular values of a...
In ade4: Analysis of Ecological Data: Exploratory and Euclidean Methods in Environmental Sciences
procuste.randtest R Documentation
Monte-Carlo Test on the sum of the singular values of a procustean rotation (in C).
Description
performs a Monte-Carlo Test on the sum of the singular values of a procustean rotation.
Usage
procuste.randtest(df1, df2, nrepet = 999, ...)
Arguments
df1
a data frame
df2
a data frame
nrepet
the number of permutations
...
further arguments passed to or from other methods
Value
returns a list of class randtest
Author(s)
Jean Thioulouse Jean.Thioulouse@univ-lyon1.fr
References
Jackson, D.A. (1995) PROTEST: a PROcustean randomization TEST of community environment concordance. Ecosciences, 2, 297–303.
Examples
data(doubs)
pca1 <- dudi.pca(doubs$env, scal = TRUE, scann = FALSE)
pca2 <- dudi.pca(doubs$fish, scal = FALSE, scann = FALSE)
protest1 <- procuste.randtest(pca1$tab, pca2$tab, 999)
protest1
plot(protest1,main="PROTEST")
ade4 documentation built on Feb. 16, 2023, 7:58 p.m.
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| procuste.randtest | R Documentation |
Monte-Carlo Test on the sum of the singular values of a procustean rotation (in C).
Description
performs a Monte-Carlo Test on the sum of the singular values of a procustean rotation.
Usage
procuste.randtest(df1, df2, nrepet = 999, ...)
Arguments
df1 |
a data frame |
df2 |
a data frame |
nrepet |
the number of permutations |
... |
further arguments passed to or from other methods |
Value
returns a list of class randtest
Author(s)
Jean Thioulouse Jean.Thioulouse@univ-lyon1.fr
References
Jackson, D.A. (1995) PROTEST: a PROcustean randomization TEST of community environment concordance. Ecosciences, 2, 297–303.
Examples
data(doubs) pca1 <- dudi.pca(doubs$env, scal = TRUE, scann = FALSE) pca2 <- dudi.pca(doubs$fish, scal = FALSE, scann = FALSE) protest1 <- procuste.randtest(pca1$tab, pca2$tab, 999) protest1 plot(protest1,main="PROTEST")
R Package Documentation
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