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Water striders live on the surface of lakes and ponds. These insects grow in six distinct stages called instars; at each transition they shed their skin / skeleton. Data has been collected on N=88 female water striders from species Limnoporus canaliculatus. Measurements are reported for the first three instars.
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A data frame with 88 observations on the following 6 variables.
Femur1
Average length of femur, instar 1
Tibia1
Average length of tibia, instar 1
Femur2
Average length of femur, instar 2
Tibia2
Average length of tibia, instar 2
Femur3
Average length of femur, instar 3
Tibia3
Average length of tibia, instar 3
The actual analysis used the variables x_j star = 100 log x_j, for the j = 1 to 6 variables reported.
Data courtesy of Dr. C.P. Klingenberg, University of Alberta
Flury, B.D. (1997) A First Course in Multivariate Statistics, New York: Springer
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