ex1613 {Sleuth2}

Flea Beetle Distinction

Description

Data are the measurements from two very similar species of flea beetle.

Usage

ex1613

Format

A data frame with 36 observations on the following 3 variables.

Jnt1

measurement of first joint in micrometers

Jnt2

measurement of second joint in micrometers

Species

a factor with levels "conc" and "heik"

Source

Ramsey, F.L. and Schafer, D.W. (2002). The Statistical Sleuth: A Course in Methods of Data Analysis (2nd ed), Duxbury.

References

Lubischew, A.A. (1962). On the Use of Discriminant Functions in Taxonomy, Biometrics 18: 455–477.

Examples

str(ex1613)