Description Usage Format Source References Examples
Six measurements on each of three species of flea-beetles: concinna, heptapotamica, and heikertingeri.
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A data frame with 74 observations on the following 7 variables.
species
a factor with levels Concinna
, Heikert.
, and Heptapot.
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.
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.
Lubischew, AA "On the Use of Discriminant Functions in Taxonomy", Biometrics, Dec. 1962, pp. 455-477.
Dianne Cook and Deborah F. Swayne, Interactive and Dynamic Graphics for Data Analysis: With Examples Using R and GGobi. URL: http://www.ggobi.org/book/data/flea.xml
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Loading required package: GrassmannOptim
Loading required package: Matrix
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