ragweed {} | R Documentation |
The ragweed
data frame has data on ragweed levels
and meteorological variables for 335 days in Kalamazoo,
Michigan, U.S.A.
data(ragweed)
This data frame contains the following columns:
Stark, P. C., Ryan, L. M., McDonald, J. L. and Burge, H. A. (1997). Using meteorologic data to model and predict daily ragweed pollen levels. Aerobiologia, 13, 177-184.
Ruppert, D., Wand, M.P. and Carroll, R.J. (2003)
Semiparametric Regression Cambridge University Press.
http://stat.tamu.edu/~carroll/semiregbook/
library(SemiPar) data(ragweed) pairs(ragweed,pch=".")