如何在R中制作时隙
伙计们,你们能帮我给我的数据定个时间段吗 我有以下数据集如何在R中制作时隙,r,R,伙计们,你们能帮我给我的数据定个时间段吗 我有以下数据集 Name Arrival Time Ron 00:30 John 16:45 Sam 14:59 我想包括每次到达的时间段 Name Arrival Time Time Slot Ron 00:30 00:00-01:00 John 16:45 16:00-17:00 Sam
Name Arrival Time
Ron 00:30
John 16:45
Sam 14:59
我想包括每次到达的时间段
Name Arrival Time Time Slot
Ron 00:30 00:00-01:00
John 16:45 16:00-17:00
Sam 14:59 14:00-15:00
如何在R中执行此操作?请查看
as.Date
和strftime
a <- "00:15"
astart <- paste(
strftime(
as.Date(
a,
"%H:%M"
),
"%H"
),
":00",
sep = ""
)
a <- "00:15"
aend <- paste(
as.integer(
strftime(
as.Date(
a,
"%H:%M"
),
"%H"
)
) + 1,
":00",
sep = ""
)
这里有一个策略:
arrival <- c('00:30','16:45','14:59')
a2 <- as.POSIXlt(arrival,'%H:%M',tz='')
paste(format(a2,'%H:00'),format(a2+3600,'%H:00'),sep='-')
[1] "00:00-01:00" "16:00-17:00" "14:00-15:00"
arrival另一种方法,我将时间视为完整日期时间,并将其保持为该格式:
arrivalString <- c("00:30", "16:45", "14:59")
arrival <- strptime(arrivalString, format = "%H:%M")
names <- c("Ron", "John", "Sam")
df <- data.frame(names, arrival)
slotbegin <- as.POSIXlt(df$arrival)
slotbegin$min <-rep(0, length(slotbegin))
df <- cbind(df, slotbegin)
slotend <- as.POSIXlt(df$arrival)
slotend$min <- rep(0, length(slotend))
slotend$hour <- slotend$hour + 1
df <- cbind(df, slotend)
arrivalString <- c("00:30", "16:45", "14:59")
arrival <- strptime(arrivalString, format = "%H:%M")
names <- c("Ron", "John", "Sam")
df <- data.frame(names, arrival)
slotbegin <- as.POSIXlt(df$arrival)
slotbegin$min <-rep(0, length(slotbegin))
df <- cbind(df, slotbegin)
slotend <- as.POSIXlt(df$arrival)
slotend$min <- rep(0, length(slotend))
slotend$hour <- slotend$hour + 1
df <- cbind(df, slotend)
names arrival slotbegin slotend
1 Ron 2013-10-09 00:30:00 2013-10-09 00:00:00 2013-10-09 01:00:00
2 John 2013-10-09 16:45:00 2013-10-09 16:00:00 2013-10-09 17:00:00
3 Sam 2013-10-09 14:59:00 2013-10-09 14:00:00 2013-10-09 15:00:00