# Create data for the graph.
x <- c(11, 30, 39, 20)
labels <- c("吉伊", "小八", "烏薩奇", "小桃")
# Plot the chart with title and rainbow color pallet.
pie(x, labels, main = "吉伊卡哇成員喜愛度 - 餅狀圖", col = rainbow(length(x)))

we <- c(55, 70, 65, 80)
height <- c(155, 175, 160, 180)
plot(we,height)

# library
library(ggplot2)
# Iris dataset is natively provided by R
data3<- data.frame(we,height)
# use options!
ggplot(data3, aes(x=we, y=height)) +
geom_point(
color="orange",
fill="#69b3a2",
shape=21,
alpha=0.5,
size=6,
stroke = 2
)

stem(height)
##
## The decimal point is 1 digit(s) to the right of the |
##
## 15 | 5
## 16 | 0
## 17 | 5
## 18 | 0