data-flea: Flea beatle measurements

In tourr: Implement tour methods in pure R code

Description

This data is from a paper by A. A. Lubischew, "On the Use of Discriminant Functions in Taxonomy", Biometrics, Dec 1962, pp.455-477.

• tars1, width of the first joint of the first tarsus in microns (the sum of measurements for both tarsi)

• tars2, the same for the second joint

• head, the maximal width of the head between the external edges of the eyes in 0.01 mm

• ade1, the maximal width of the aedeagus in the fore-part in microns

• ade2, the front angle of the aedeagus ( 1 unit = 7.5 degrees)

• ade3, the aedeagus width from the side in microns

• species, which species is being examined - concinna, heptapotamica, heikertingeri

Usage

data(flea)

Format

A 74 x 7 numeric array

Examples

head(flea)
animate_xy(flea[,-7])
animate_xy(flea[,-7],col=flea[,7])

Example output

  tars1 tars2 head aede1 aede2 aede3   species
1   191   131   53   150    15   104 Concinna 
2   185   134   50   147    13   105 Concinna 
3   200   137   52   144    14   102 Concinna 
4   173   127   50   144    16    97 Concinna 
5   171   118   49   153    13   106 Concinna 
6   160   118   47   140    15    99 Concinna 
Using half_range 0.98
Using half_range 0.98

tourr documentation built on May 2, 2019, 5:28 p.m.