R Graphics I 散点图 plot(cars$dist~cars$speed, main="Relationship between car distance speed", xlab="Speed (miles per hour)", ylab="Distance travelled(miles)", Relationship between car distance and speed xlim=c(0,30), ylim=c(0,140), XaXS=“i", yaxs="j", col="red", 品 pch=19) 品 导 0 5 10 15 20 25 30plot(cars$dist~cars$speed, main="Relationship between car distance & speed", xlab="Speed (miles per hour)", ylab="Distance travelled (miles)", xlim=c(0,30), ylim=c(0,140), xaxs=“i", yaxs="i", col="red", pch=19) R Graphics I 散点图