ade4 (version 1.01)

clementines: 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

Tisn�-Agostini, D. (1988) Description par analyse en composantes principales de l'�volution de la production du cl�mentinier en association avec 12 types de porte-greffe. Rapport technique, DEA Analyse et mod�lisation des syst"mes biologiques, Universit� 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)
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)