align_move.Rd
This function aligns movement data to a uniform time scale with a uniform temporal resolution throughout the complete movement sequence.
This prepares the provided movement data to be interpretable by frames_spatial
, which necessitates a uniform time scale and
a consistent, unique temporal resolution for all moving individuals to turn recording times into frame times.
align_move( m, res = "minimum", unit = NA, spaceMethod = "greatcircle", ..., verbose = TRUE )
m |
|
---|---|
res | either numeric, representing the temporal resolution, to which
|
unit | character, temporal unit of |
spaceMethod | character, either |
... | deprecated arguments including |
verbose | logical, if |
Aligned move
or moveStack
, ready to be used with frames_spatial
-
library(moveVis) library(move) data("move_data") # the tracks in move_data have irregular timestamps and sampling rates. # print unique timestamps and timeLag unique(timestamps(move_data)) unique(unlist(timeLag(move_data, units = "secs"))) # use align_move to correct move_data to a uniform time scale and lag using interpolation. # resolution of 4 minutes: m <- align_move(m = move_data, res = 4, unit = "mins") unique(unlist(timeLag(m, units = "mins"))) # resolution of 1 hour: m <- align_move(move_data, res = 1, unit = "hours") unique(unlist(timeLag(m, units = "hours"))) # resolution of 15 seconds: m <- align_move(move_data, res = 15, unit = "secs") unique(unlist(timeLag(m, units = "secs")))