【发布时间】:2021-12-01 01:44:55
【问题描述】:
我有包含许多行的数据框。这里是:
library(lubridate)
date_ <- date(seq(ymd_h("2020-01-01-00"), ymd_h("2021-03-31-23"), by = "hours"))
hour_ <- hour(seq(ymd_h("2020-01-01-00"), ymd_h("2021-03-31-23"), by = "hours"))
game1 <- sort(round(runif(length(date_), 10, 50), 0), decreasing = TRUE)
game2 <- sort(round(runif(length(date_), 20, 100), 0), decreasing = TRUE)
game3 <- sort(round(runif(length(date_), 30, 150), 0), decreasing = TRUE)
game4 <- sort(round(runif(length(date_), 40, 200), 0), decreasing = TRUE)
game_data <- data.frame(date_, hour_, game1, game2, game3, game4)
我只想对 game_data 进行子集化以获取所有过去 6 个月的数据。我如何获得它?
【问题讨论】: