require(clusterTrack)
require(clusterTrack.Vis)ARGOS locations for one male Pectoral Sandpiper.
See pesa56511 for more information on the dataset.
data(pesa56511)
ctdf <- as_ctdf(pesa56511, time = "locationDate") |>
cluster_track()
map(ctdf)
summary(ctdf) |>
head()
#> cluster start stop geometry
#> <int> <POSc> <POSc> <sfc_POINT>
#> 1: 1 2014-06-02 23:25:19 2014-06-04 05:00:22 POINT (-10052790 7771939)
#> 2: 2 2014-06-04 07:39:07 2014-06-04 15:37:33 POINT (-9968113 7758451)
#> 3: 3 2014-06-04 17:20:36 2014-06-05 04:22:12 POINT (-9970427 7754612)
#> 4: 4 2014-06-05 13:55:36 2014-06-05 18:55:02 POINT (-9862130 7729138)
#> 5: 5 2014-06-05 22:21:00 2014-06-09 20:01:01 POINT (-9658104 7710720)
#> 6: 6 2014-06-10 09:31:53 2014-06-21 02:07:48 POINT (-10051693 7769286)
#> lof_q95 ids N tenure dist_to_next elongation
#> <num> <char> <int> <difftime> <units> <num>
#> 1: 2.436335 5-75 66 1.2326736 days 85744.755 [m] 0.0000000
#> 2: 1.579420 82-107 23 0.3322454 days 4482.812 [m] 0.0000000
#> 3: 2.123607 112-137 22 0.4594444 days 111252.561 [m] 0.0000000
#> 4: 3.102805 150-167 16 0.2079398 days 204855.239 [m] 0.0000000
#> 5: 1.984879 177-351 142 3.9027894 days 397922.526 [m] 0.7360091
#> 6: 1.553390 362-862 447 10.6916088 days NA [m] 0.0000000