R在lubridate中操纵日期和时间
示例
date <- now() date ## "2016-07-22 03:42:35 IST" year(date) ## 2016 minute(date) ## 42 wday(date, label = T, abbr = T) # [1] Fri # Levels: Sun < Mon < Tues < Wed < Thurs < Fri < Sat day(date) <- 31 ## "2016-07-31 03:42:35 IST" # If an element is set to a larger value than it supports, the difference # will roll over into the next higher element day(date) <- 32 ## "2016-08-01 03:42:35 IST"
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