apples: Apple rootstock data

In Flury: Data Sets from Flury, 1997

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)

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)

Example output

Flury documentation built on May 1, 2019, 6:50 p.m.