R Gap między datą Dodaj brakującą wartość
library(dplyr)
ts <- seq.POSIXt(as.POSIXct("2001-09-01 0:00",'%m/%d/%y %H:%M'), as.POSIXct("2001-09-01 0:07",'%m/%d/%y %H:%M'), by="min")
ts <- seq.POSIXt(as.POSIXlt("2001-09-01 0:00"), as.POSIXlt("2001-09-01 0:07"), by="min")
ts <- format.POSIXct(ts,'%m/%d/%y %H:%M')
df <- data.frame(timestamp=ts)
data_with_missing_times <- full_join(df,original_data)
timestamp tr tt sr st
1 09/01/01 00:00 15 15 78 42
2 09/01/01 00:01 20 64 98 87
3 09/01/01 00:02 31 84 23 35
4 09/01/01 00:03 21 63 54 20
5 09/01/01 00:04 15 23 36 15
6 09/01/01 00:05 NA NA NA NA
7 09/01/01 00:06 NA NA NA NA
8 09/01/01 00:07 NA NA NA NA
data_with_missing_times %>% group_by(timestamp) %>% mutate_each(funs(ifelse(is.na(.),0,.)))
timestamp tr tt sr st
1 09/01/01 00:00 15 15 78 42
2 09/01/01 00:01 20 64 98 87
3 09/01/01 00:02 31 84 23 35
4 09/01/01 00:03 21 63 54 20
5 09/01/01 00:04 15 23 36 15
6 09/01/01 00:05 0 0 0 0
7 09/01/01 00:06 0 0 0 0
8 09/01/01 00:07 0 0 0 0
Tiange Ye