将week.year转换为year.month-R中的日期
我想在ISO 8601中将日期week.year(“44.2016”)转换为year.month(2016-11)将week.year转换为year.month-R中的日期,r,date,R,Date,我想在ISO 8601中将日期week.year(“44.2016”)转换为year.month(2016-11) 我有一个变量date\u week注意,您需要指定一天,因为一周可能意味着连续两个月。试试这个: as.Date(paste("1", date_week, sep = "."), format = "%w.%W.%Y") # 1st day (monday 31 oct 2016) as.Date(paste("2", date_week, sep = "."), format
我有一个变量
date\u week注意,您需要指定一天,因为一周可能意味着连续两个月。试试这个:
as.Date(paste("1", date_week, sep = "."), format = "%w.%W.%Y") # 1st day (monday 31 oct 2016)
as.Date(paste("2", date_week, sep = "."), format = "%w.%W.%Y") # 2nd day (Tuesday 01 nov 2016)
# new format
format(as.Date(paste("1", date_week, sep = "."), format = "%w.%W.%Y"), "%Y-%m")
# [1] "2016-10"
format(as.Date(paste("2", date_week, sep = "."), format = "%w.%W.%Y"), "%Y-%m")
# [1] "2016-11"
这有帮助吗<代码>格式(tail(seq(as.Date(“2016-01-01”),by=“1天”,length.out=44*7),1L),“%Y-%m”)
as.Date(粘贴(“1”,Date\u-week,sep=“”),格式=“%w.%Y”)
?看起来2016年第44周实际上是从10月31日开始的,它不起作用@chinsoon12是的@ANG!谢谢大家!
as.Date(date_week, format = "%w.%Y")
as.Date(date_week, format = "%w.%Y")
as.Date(paste("1", date_week, sep = "."), format = "%w.%W.%Y") # 1st day (monday 31 oct 2016)
as.Date(paste("2", date_week, sep = "."), format = "%w.%W.%Y") # 2nd day (Tuesday 01 nov 2016)
# new format
format(as.Date(paste("1", date_week, sep = "."), format = "%w.%W.%Y"), "%Y-%m")
# [1] "2016-10"
format(as.Date(paste("2", date_week, sep = "."), format = "%w.%W.%Y"), "%Y-%m")
# [1] "2016-11"