flea.beetles: Flea Beetles data

In Flury: Data Sets from Flury, 1997

Description

Two species of flea beetle (Haltica oleracea, H. carduourum), with 4 body measurements

Usage

data(flea.beetles)

Format

A data frame with 39 observations; 19 from Haltica oleracea and 20 from H. carduourum (denoted by a factor) and four measurements.

Species

a factor with levels oleracea carduorum

TG

Distange of the Transverse Groove to the posterior border of the prothorax (microns)

Elytra

Length of the Elytra (in units of 0.01mm)

Second.Antenna

Length of the second antennal joint (microns)

Third.Antenna

Length of the third antennal joint (microns)

Source

Lubischew, A.A. (1962) “On the use of discriminant functions in taxonomy”. Biometrics 18:455-477

References

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

Examples

data(flea.beetles)
## Not run: pairs(flea.beetles[,-1],
  lower.panel = function(x, y){ points(x, y,
  pch = unclass(flea.beetles[,1]),
  col = unclass(flea.beetles[,1]))},
  main = "Pairwise scatter plots for Lubischew's Flea Beetle data")

## End(Not run)

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