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This data is from a paper by A. A. Lubischew, "On the Use of Discriminant Functions in Taxonomy", Biometrics, Dec 1962, pp.455-477.
A 74 x 7 numeric array
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
head(flea) animate_xy(flea[, -7]) animate_xy(flea[, -7], col = flea[, 7])
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