Untitled

s <- c(68,85,74,88,63,78,90,80,58,63)
m <- c(85,91,74,100,82,84,78,100,51,70)
##畫圖
plot(s, m,
     pch = 19,
     col = "blue")

hist(s,freq = FALSE,    
     main = "統計直方圖",
     xlab = "統計成績",ylab="次數")

# Load ggplot2
library(ggplot2)

# Create data
data <- data.frame(
  name=c("娛樂休閒","知識閱讀","體育競技","科學創新","公益活動") ,  
  value=c(185,82,36,28,25)
  )

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

# Create Data
Prop <-c(185,82,36,28,25)
 
# Make the default Pie Plot
pie(Prop , labels = c("娛樂休閒","知識閱讀","體育競技","科學創新","公益活動"))

# Libraries
library(ggplot2)

# Create data

# Plot
ggplot(data, aes(x=name, y=value)) +
  geom_point() + 
  geom_segment( aes(x=name, xend=name, y=0
                    , yend=value))

data2 <- read.csv("D:/table.csv")

#平均數 總合除個數 
mean(data2$Japanese) 

## [1] 67.9

#中位數:將資料由小到大，位置居中者，就是中位數  
median(data2$Japanese) 

## [1] 62

#標準差  
sd(data2$Japanese)  

## [1] 16.25115

#變異數 
var(data2$Japanese)

## [1] 264.1

sd(data2$Japanese)  

## [1] 16.25115