clementines {ade4} | R Documentation

## Fruit Production

### Description

The `clementines` is a data set containing the fruit production of 20 clementine trees during 15 years.

### Usage

    data(clementines)

### Format

A data frame with 15 rows and 20 columns

### Source

Tisné-Agostini, D. (1988) Description par analyse en composantes principales de l'évolution de la production du clémentinier en association avec 12 types de porte-greffe. Rapport technique, DEA Analyse et modélisation des systèmes biologiques, Université Lyon 1.

### Examples

    data(clementines)

    op <- par(no.readonly = TRUE)
    par(mfrow = c(5, 4))
    par(mar = c(2, 2, 1, 1))
    for(i in 1:20) {
      w0 <- 1:15
      plot(w0, clementines[, i], type = "b")
      abline(lm(clementines[, i] ~ w0))
    }
    par(op)

    pca1 <- dudi.pca(clementines, scan = FALSE)
    if(adegraphicsLoaded()) {
      g1 <- s.corcircle(pca1$co, plab.cex = 0.75)
      g2 <- s1d.barchart(pca1$li[, 1], p1d.hori = FALSE)
    } else {
      s.corcircle(pca1$co, clab = 0.75)
      barplot(pca1$li[, 1])
    }

    op <- par(no.readonly = TRUE)
    par(mfrow = c(5, 4))
    par(mar = c(2, 2, 1, 1))
    clem0 <- pca1$tab
    croi <- 1:15
    alter <- c(rep(c(1, -1), 7), 1)
    for(i in 1:20) {
      y <- clem0[,i]
      plot(w0, y, type = "b", ylim = c(-2, 2))
      z <- predict(lm(clem0[, i] ~ croi * alter))
      points(w0, z, pch = 20, cex = 2)
      for(j in 1:15)
        segments(j, y[j], j, z[j])
    }
    par(op)
    par(mfrow = c(1, 1))

[Package ade4 version 1.7-13 Index]