apples {Flury}R Documentation

Apple rootstock data

Description

Growth and size measurements on eight apple trees of each of six different rootstocks.

Usage

data(apples)

Format

A data frame with 48 observations on the following 5 variables.

Rootstock
a factor with levels 1 2 3 4 5 6
Girth.4
Trunk girth at 4 years (10cm)
Growth.4
Extension growth at 4 years (m)
Girth.15
Trunk girth at 15 years (10cm)
Weight.15
Weight of tree above ground at 15 years (1000 pounds)

Details

Source

Andrews D.F. and A.M Herzberg (1985) Data New York:Springer

References

Flury, B.D. (1997) A First Course in Multivariate Statistics, New York: Springer

Examples

data(apples)
## Not run: 
pairs(apples[,-1],
  lower.panel = function(x, y){ points(x, y,
  pch = unclass(apples[,1]),
  col = as.numeric(apples[,1]))},
  main = "Pairwise scatter plots for apple rootstocks")
## End(Not run)

[Package Flury version 0.1 Index]