Re: [R] Class ltraj and function as.ltraj

2014-10-02 Thread Michael Sumner
You don't detail how you detect that 'there are no duplicates', and also provide no proof of this. It's not the usual sense of duplicated(), it needs to be that there are no date-times within a burst (a single animal's trip/journey/trajectory). Can you try this on your datetime and burst id and rep

[R] Class ltraj and function as.ltraj

2014-10-02 Thread tandi perkins
Hello R Help Group: I have been struggling to create an object of class ltraj with the function as.ltraj (adehabitatLT) with my bird data. Regarding my data structure, I have GPS for 10 birds that transmit three times/day, over the course of a year (with missing data). I have a L10.csv file with