Box-plot, Dot-plot

# Data input

> x<-c(28,27,30,32,29,32,33,27,23,22,26,20)

# Data output

> x

[1] 28 27 30 32 29 32 33 27 23 22 26 20

# Boxplot

> boxplot(x)

# Data input

> y<-c(29,37,34,37,29,28,33,36,33,32,26,31)

# Data output

> x

[1] 28 27 30 32 29 32 33 27 23 22 26 20

> y

[1] 29 37 34 37 29 28 33 36 33 32 26 31

# Boxplot

> boxplot(x,y)

# Put name & change Y axis

> boxplot(x,y, names=c("Osaka", "Tokyo"), ylim=c(0,40))

# Read "lattice" package

> library(lattice)

# Dotplot

> dotplot(x)