---

title: “Untitled” output: html_document date: “2024-11-07”

age <- c(20,21,23,55,67,52)
high <- c(150,160,170,175,150,153)

mean(age) #年齡的平均數

## [1] 39.66667

Q1 <- quantile(age, 1 / 4 )
Q2 <- quantile(age, 2 / 4 )

median(age)

## [1] 37.5

plot(age,high)

plot(age,high,
     pch = 17,
     col= "skyblue",
     main ="班上的體重與身高",
     xlab ="體重",
     ylab ="身高")

hist(age,
     col= "lightyellow",
     main ="班上的體重與身高",
     xlab ="體重",
     ylab ="次數")

library(ggplot2)

# Create data
data <- data.frame(
  type=c("eso","osn","eo") ,  
  value=c(3,12,5)
  )

# Barplot
ggplot(data, aes(x=type, y=value)) + 
  geom_bar(stat = "identity", width=0.2, fill="yellow") 

data<- c(50,23,35,48)
labels <- c("英文系","法文系","德文","翻譯")

pie(data,labels,main ="學生的比例", col=heat.colors(length(data)))