avimedi {ade4} | R Documentation

## Fauna Table for Constrained Ordinations

### Description

`avimedi` is a list containing the informations about 302 sites :
frequencies of 51 bird species ; two factors (habitats and Mediterranean origin).

### Usage

    data(avimedi)

### Format

This list contains the following objects:

fau
  is a data frame 302 sites - 51 species.
plan
  is a data frame 302 sites - 2 factors.
nomesp
  is a vector 51 latin names.

### Source

Blondel, J., Chessel, D., & Frochot, B. (1988) Bird species impoverishment, niche expansion, and density inflation in mediterranean island habitats. Ecology, 69, 1899–1917.

### Examples

    ## Not run:
    data(avimedi)
    par(mfrow = c(2,2))
    coa1 <- dudi.coa(avimedi$fau, scan = FALSE, nf = 3)
    s.class(coa1$li,avimedi$plan$str:avimedi$plan$reg,
        sub = "Correspondences Analysis")
    bet1 <- between(coa1, avimedi$plan$str, scan = FALSE)
    s.class(bet1$ls, avimedi$plan$str,
        sub = "Between Analysis")
    wit1 <- within(coa1, avimedi$plan$reg, scan=FALSE)
    s.class(wit1$li, avimedi$plan$str,
        sub = "Within Analysis")
    pcaiv1 <- pcaiv(coa1, avimedi$plan, scan = FALSE)
    s.match(pcaiv1$li, pcaiv1$ls, clab = 0,
        sub = "Canonical Correspondences Analysis")
    s.class(pcaiv1$li, avimedi$plan$str:avimedi$plan$reg,
        add.plot = TRUE)
    par(mfrow=c(1,1))
    ## End(Not run)

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