This data is from a paper by A. A. Lubischew, "On the Use of Discriminant Functions in Taxonomy", Biometrics, Dec 1962, pp.455-477.
Format
A 74 x 7 numeric array
Details
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
Examples
head(flea)
#> 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
animate_xy(flea[, -7])
#> Converting input data to the required matrix format.
#> Using half_range 66
animate_xy(flea[, -7], col = flea[, 7])
#> Converting input data to the required matrix format.
#> Using half_range 66
