R tutorial 11 - Scatterplots 散点圖

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/*散点圖月薪和花红的关系。*/1. ScatterplotsuserName <- c("Lam Wei Wei", "Zheng Da Shi", "Lin Da You", "Fei Gu Man", "Chen Kuang", "Wong wei yun")salary <- c(8500, 9800, 12500, 15000, 8700, 7500)jobPosition <- c("Staff", "Manger", "BOSS", "CEO", "Staff", "Staff")bonus <- c(2300, 1350, 3285, 1035, 3285, 1035)result <- data.frame(userName, salary, jobPosition, bonus)resultattach(mtcars)plot(salary, bonus, main="Scatterplot Example", xlab="Salary", ylab="Bonus", pch=19)

2. Scatterplots abline

userName <- c("Lam Wei Wei", "Zheng Da Shi", "Lin Da You", "Fei Gu Man", "Chen Kuang", "Wong wei yun")salary <- c(8500, 9800, 12500, 15000, 8700, 7500)jobPosition <- c("Staff", "Manger", "BOSS", "CEO", "Staff", "Staff")bonus <- c(2300, 1350, 3285, 1035, 3285, 1035)result <- data.frame(userName, salary, jobPosition, bonus)resultplot(salary, bonus, main="Scatterplot Example",       xlab="Salary", ylab="Bonus", pch=19)      abline(lm(bonus~salary), col="red")lines(lowess(bonus~salary), col="blue")

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