rhone {ade4} | R Documentation

## Physico-Chemistry Data

### Description

This data set gives for 39 water samples a physico-chemical description with the number of sample date and the flows of three tributaries.

### Usage

    data(rhone)

### Format

`rhone` is a list of 3 components.

tab
  is a data frame with 39 water samples and 15 physico-chemical variables.
date
  is a vector of the sample date (in days).
disch
  is a data frame with 39 water samples and the flows of the three tributaries.

### Source

Carrel, G., Barthelemy, D., Auda, Y. and Chessel, D. (1986) Approche graphique de l'analyse en composantes principales normée : utilisation en hydrobiologie. Acta Oecologica, Oecologia Generalis, 7, 189–203.

### Examples

    data(rhone)
    pca1 <- dudi.pca(rhone$tab, nf = 2, scann = FALSE)
    rh1 <- reconst(pca1, 1)
    rh2 <- reconst(pca1, 2)
    par(mfrow = c(4,4))
    par(mar = c(2.6,2.6,1.1,1.1))
    for (i in 1:15) {
        plot(rhone$date, rhone$tab[,i])
        lines(rhone$date, rh1[,i], lwd = 2)
        lines(rhone$date, rh2[,i])
        scatterutil.sub(names(rhone$tab)[i], 2, "topright")
    }
    par(mfrow = c(1,1))

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