weight <- c(50,55,63,67,43,52,60)

high <- c(160,170,175,150,153,165,180)

plot(weight,high)

plot(weight,high,
     pch=18,
     col="#D3A4FF",
     xlab="體重",
     ylab="身高",
     main="班級的身高體重")

library("ggplot2")
# Create data
data <- data.frame(
  name=c("A","B","C","D","E") ,  
  value=c(3,12,5,18,45)
  )

# Barplot
ggplot(data, aes(x=name, y=value)) + 
  geom_bar(stat = "identity") +
  coord_flip()