Untitled

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

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


mean(age) 

## [1] 55

median(age)

## [1] 55

mode(age)

## [1] "numeric"

Q1 <- quantile(age, 1 / 4) 
Q2 <- quantile(age, 2 / 4) 
Q3 <- quantile(age, 3 / 4) 

Q1

## 25% 
##  51

Q2

## 50% 
##  55

plot(age,high)

plot(age,high,
     pch=16,
     col="#9AE0D8",
     xlab="年齡",
     ylab="身高",
     main="班級的年齡體重")

hist(age,
     col= "lightyellow",
     main ="班上的年齡與身高",
     xlab ="體重",
     ylab ="人數")

# Load ggplot2
library(ggplot2)

# Create data
data <- data.frame(
  遊戲=c("原神","崩壞:星穹鐵道決區","絕區零"),
  運營年數=c(4,2,0.5)
  )

# Barplot
ggplot(data, aes(x=遊戲, y=運營年數)) + 
  geom_bar(stat = "identity")

data2<- c(50,23,35,48)
labels <- c("英文系","法文系","德文","翻譯")

pie(data2,labels,main ="學生的比例", col=heat.colors(length(data)))