【发布时间】:2021-02-24 16:35:55
【问题描述】:
this 问题的续集。我有以下df
df <- data.frame(genre = c("Thriller", "Horror", "Action"), europe = c(195, 210, 300), asia = c(130, 90, 150), america = c(325, 300, 150))
genre europe asia america
1 Thriller 195 130 325
2 Horror 210 90 300
3 Action 300 150 150
【问题讨论】: