dates <- NULL
date <- as.Date("01/01/2014","%d/%m/%Y")
dates <- data.frame(date=as.Date(character())
,cal_day_in_year_num = numeric()
,cal_week_id = numeric()
,cal_week_start_date = as.Date(character())
,cal_week_end_date = as.Date(character())
)
for (i in 1:365) {
dates[i,1] <- date + days(i-1) ## date
dates[i,2] <- yday(dates[i,1]) ## cal_day_in_year_num
dates[i,3] <- paste(year(dates[i,1]),sprintf("%02d",week(dates[i,1])),sep="") ## cal_week_id
dates[i,4] <- floor_date(dates[i,1], "week") ## cal_week_start_date
dates[i,5] <- ceiling_date(dates[i,1], "week") ## cal_week_end_date
}
View(dates)
对于给定的日期,我试图用lubridate函数计算一周的相应的开始和结束日期更改lubridate功能星期一开始,而不是周日
我遇到的问题是那虹膜是在一周的第一天是星期天,因为我需要它是星期一 - 有没有人有办法绕过这个?
虽然这可能不是官方的方式,但您可以简单地添加+1? – Wave 2014-10-02 11:59:36
不幸的是,我不认为加1到cal_week_start_date将工作,例如周日仍将被归类为错误 – 2014-10-02 12:13:37