Untitled

# Create data for the graph.
x <- c(11, 30, 39, 20)
labels <- c("70後", "80後", "90後", "00後")


# Plot the chart with title and rainbow color pallet.
pie(x, labels, main = "出生年齡段 - 餅狀圖", col = rainbow(length(x)))
legend("topright", labels, cex = 0.9, fill = rainbow(length(labels)))

we <- c(55,60,70,75,75)

we2 <- c(155,160,170,175,175)

plot(we,we2,
     pch = 17,
     col= "skyblue",
     main ="班上的體重與身高",
     xlab ="體重",
     ylab ="身高")

stem(we)

## 
##   The decimal point is 1 digit(s) to the right of the |
## 
##   5 | 5
##   6 | 0
##   6 | 
##   7 | 0
##   7 | 55