Resistance of Daphnia eggs to different levels of cyanobacteria (
cyandensity) from 1962-1997.
A data frame with 32 observations on the following 2 variables.
a factor with levels:
a numeric vector
inferred from Hairston, N.G., Jr., W. Lampert, C.E. Cáceres, C.L. Holtmeier, L.J. Weider, U. Gaedke, J.M. Fischer, J.A. Fox, and D.M. Post. 1999. Dormant eggs record rapid evolution. Nature 401: 446.
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data(DaphniaResistance) str(DaphniaResistance) bwplot(resistance ~ density, DaphniaResistance) # with such a small data set, we can display all the data rather than a summary xyplot(resistance ~ density, DaphniaResistance) histogram( ~ resistance| density, DaphniaResistance, strip=FALSE, strip.left = TRUE, layout=c(1,3) )