# NOT RUN {
#load data
data(tracks)
#subset only first track
tracks<- tracks[tracks$id == "id1",]
#calculate step lengths and turning angles
tracks<- prep_data(dat = tracks, coord.names = c("x","y"), id = "id")
#round times to nearest interval of interest (e.g. 3600 s or 1 hr)
tracks<- round_track_time(dat = tracks, id = "id", int = 3600, tol = 180, time.zone = "UTC")
#create list from data frame
tracks.list<- df_to_list(dat = tracks, ind = "id")
#filter observations to only 1 hr (or 3600 s)
tracks_filt.list<- filter_time(dat.list = tracks.list, int = 3600)
# }
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