urchin.growth {UsingR} | R Documentation |
Data on growth of sea urchins.
data(urchin.growth)
A data frame with 250 observations on the following 2 variables.
Estimated age of sea urchin
Measurement of size
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)