Displaying 2 results from an estimated 2 matches for "addtime2".
2010 Mar 18
2
Dataframe manipulation
...sequentially, and the starting
site for a survey day was chosen randomly. The route is circular,
proceeding from site 101 to 104. I really hope someone can help
me with this, because I am so close to finishing it.
BTW, the code that adds minutes to 24 hr time to create 24 hr time is as follows:
addTime2<-function(timeTxt,mins){
orig.date<-as.POSIXct(paste("2001-01-01",timeTxt))
new.Date<-orig.date+mins*60
new.Date<-strsplit(as.character(new.Date)," ")
new.Time<-(sapply(new.Date,"[",2))
return(new.Time)
}
SCHEDULE2$DEPART<-addTime2(SCHEDULE2$ARRIVE,SC...
2010 Mar 17
3
Adding minutes to 24 hour time
Hi,
Does anyone know how to add minutes (up to 100 min) to a 24 hour time, to create a new 24 hour time? I can't seem to find any documentation or examples explaining how to do this. The variables of interest are 'ARRIVE','WAIT', and 'DEPART' in the attached partial dataframe. I want 'DEPART' to be the "sum" of 'ARRIVE' and 'WAIT' in