Untitled

we <- c(85,74,88,63,78,90,80,58,63) 

we2 <- c(91,74,100,82,84,78,100,51,70) 

mean(we)       #平均數

## [1] 75.44444

plot(we,we2,
     pch = 17, 
     col= "skyblue",
     main ="統計成績與數學成績", 
     xlab ="Statistic", ylab ="Math")

hist(we, 
     col= "lightyellow",
     main ="統計成績與數學成績", 
     xlab ="Statistic", 
     ylab ="Math") 

# Load ggplot2 
library(ggplot2)

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


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

data2<- c(185,82,36,28,25) 
labels <- c("休閒娛樂","知識閱讀","體育競技","科學創新","公益活動") 

pie(data2,labels,main ="大學生最喜歡參加的社團的次數分配表", col=heat.colors(length(data2)))

# Create data


#ggplot
ggplot(data, aes(x=name, y=value)) +
  geom_segment( aes(x=name, xend=name, y=0, yend=value)) +
  geom_point( size=5, color="red", fill=alpha("orange", 0.3), alpha=0.7, shape=21, stroke=2)

## 
##   The decimal point is 1 digit(s) to the right of the |
## 
##   4 | 9
##   5 | 139
##   6 | 13
##   7 | 9
##   8 | 49
##   9 | 1

## [1] 67.9

## [1] 62

## [1] 49

## [1] 16.25115

## [1] 264.1

##  25% 
## 54.5

##   75% 
## 82.75