【latex版】水贴

The book refers to many datasets that can be found in the “faraway” package that needs to be added to R. Windows and Macintosh users will find it most convenient to select the “Install packages from CRAN” option under the “Package” menu while running R, and then choose “faraway” from the list of packages. A source version of the package can be obtained from the R website.

Windows and Macintosh users

Windows and Macintosh users

1. data(wcgs, package="faraway")
   
2. summary(wcgs[,c("chd","height","cigs")])
   
3. plot(height ~ chd, wcgs)
   
4. wcgs$y <- ifelse(wcgs$chd == "no",0,1)
   
5. plot(jitter(y,0.1) ~ jitter(height), wcgs, xlab="Height",  ylab="Heart Disease", pch=".")
   
6. library(ggplot2)

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1. ggplot(wcgs, aes(x=height, color=chd)) + geom_histogram(position="dodge", binwidth=1)
   
2. ggplot(wcgs, aes(x=cigs, color=chd)) + geom_histogram(position="dodge", binwidth=5, aes(y=..density..))
   
3. ggplot(wcgs, aes(x=height,y=cigs))+geom_point(alpha=0.2, position=position_jitter())+facet_grid(~ chd)
   
4. library(faraway)

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1. data(orings, package="faraway")
   
2. plot(damage/6 ~ temp, orings, xlim=c(25,85), ylim = c(0,1), xlab="Temperature", ylab="Prob of damage")

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the linear mixed models

the linear mixed models

东岚香

the linear mixed models