crossJoining两个数据帧而不重复值

Question

我有两个数据帧

DataFrame1 <-  data.frame(StudentId = c(1:20), Subject = c(rep("Algebra", 4), rep("Geometry", 4), rep("English", 4), rep("Zoology", 4), rep("Botany", 4)), CGPA = c(random::randomNumbers(20, 70, 100, 1)), Country = c(rep("USA", 4), rep("UK", 4), rep("Germany", 4), rep("France", 4), rep("Japan", 4)))

和

DataFrame2 <-  data.frame(StudentId = c(1:10), State = c(rep("NYC", 2), rep("Illinois", 2), rep("Texas", 2), rep("Virginia", 2), rep("Florida", 2)), Age = c(random::randomNumbers(10, 16, 20, 1)), Gender = c(rep("Male", 3), rep("Female", 3), rep("Male", 2), rep("Female", 2)))

我可以使用内部联接合并上面两个

merge(DataFrame1, DataFrame2)

如何合并为交叉连接两个数据帧而不重复值？

Answer 1

尝试merge(DataFrame1, DataFrame2, all = T)

Answer 2

尝试使用此功能进行交叉连接..

knitr :: kable（merge（x = DataFrame1，y = DataFrame2，by = NULL））