flea: Historical data used for classification examples.
Description
This data contains physical measurements on three species of flea beetles.
Format
A data frame with 74 rows and 7 variablesDetails
- species Ch. concinna, Ch. heptapotamica, Ch. heikertingeri
- tars1 width of the first joint of the first tarsus in microns
- tars2 width of the second joint of the first tarsus in microns
- head the maximal width of the head between the external edges of the eyes in 0.01 mm
- aede1 the maximal width of the aedeagus in the fore-part in microns
- aede2 the front angle of the aedeagus (1 unit = 7.5 degrees)
- aede3 the aedeagus width from the side in microns
References
Lubischew, A. A. (1962), On the Use of Discriminant Functions in
Taxonomy, Biometrics 18:455-477.