[R] Duplicated date values aren't duplicates

[odocoileus55]

Hi all,

I am experiencing a similar issue with "non unique dates for a given burst". 
This is more of a practice session for me, I have data from 1 collared
animal and for practice, assigned this individual 2 bursts (wk1 and wk2).

This is what I have:
       ID         DATETIME BURST      X       Y
1   12021  11/28/2006 0:01   wk1 6xxxxxx 30xxxxx
2   12021  11/28/2006 1:01   wk1 6xxxxxx 30xxxxx
3   12021  11/28/2006 2:01   wk1 6xxxxxx 30xxxxx

Codes are:

data=read.csv("test.csv",header=TRUE)
attach(data)
xy<-data[,c("X","Y")]
da<-as.character(data$DATETIME)
da<-as.POSIXct(strptime(as.character(data$DATETIME),"%m/%d/%Y %H:%M"))
litr<-as.ltraj(xy,da,id,burst,typeII=TRUE)
##error is displayed
##checking for duplicates
dupz=which(duplicated(da))
## results show "55 210", can not be right since duplicated times are
impossible
##checking for duplicates in xy
dupz=which(duplicated(xy))
##results show "0"
##one thing I noticed is that xy is in 1 column and da is displayed in 7
columns.  Could that be the issue?  Perhaps the da needs to be in one column
to match up with the xy?

Thanks in advance.


-- 
View this message in context: http://r.789695.n4.nabble.com/Duplicated-date-values-aren-t-duplicates-tp897178p3167487.html
Sent from the R help mailing list archive at Nabble.com.