UsingR: urchin.growth – R documentation

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urchin.growth

Data on growth of sea urchins

Data on growth of sea urchins.

data(urchin.growth)

A data frame with 250 observations on the following 2 variables.

Data is sampled from a data set that accompanies the thesis of P. Grosjean.

Thesis was found at http://www.sciviews.org/_pgrosjean

data(urchin.growth)
plot(jitter(size) ~ jitter(age), data=urchin.growth)

Data Sets, Etc. for the Text "Using R for Introductory Statistics", Second Edition

v2.0-6

GPL (>= 2)

Authors

John Verzani <verzani@math.csi.cuny.edu>

Initial release