ustemp {} | R Documentation |
The ustemp
data frame has 56 observations on the temperature
and location of 56 U.S. cities.
data(ustemp)
This data frame contains the following columns:
Peixoto, J.L. (1990). A property of well-formulated polynomial regression models. American Statistician, 44, 26-30.
Ruppert, D., Wand, M.P. and Carroll, R.J. (2003)
Semiparametric Regression Cambridge University Press.
http://stat.tamu.edu/~carroll/semiregbook/
library(SemiPar) data(ustemp) attach(ustemp) grey.levs <- min.temp+20 col.vec <- paste("grey",as.character(grey.levs),sep="") plot(-longitude,latitude,col=col.vec,pch=16,cex=3,xlim=c(-130,-60)) text(-longitude,latitude,as.character(city))