adehabitatLT: subsample – R documentation

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subsample

Subsample a Trajectory

This function subsamples a regular trajectory (i.e. changes the time lag between successive relocations).

subsample(ltraj, dt, nlo = 1,
          units = c("sec", "min", "hour", "day"), ...)

`ltraj`	an object of class `ltraj`
`dt`	numeric value. The new time lag (should be a multiple of the time lag in `ltraj`)
`nlo`	an integer, or a vector of integers (with length equal to the number of bursts in `ltraj`), indicating the position of the first location of the new bursts in the old bursts. For example, if the previous time lag is equal to 300 seconds and the new time lag is 900 seconds, the new bursts may begin at the first, second or third relocations of the old bursts in `ltraj`.
`units`	character string. The time units of `dt`
`...`	additional arguments to be passed to other functions

An object of class ltraj

data(capreotf)
plot(capreotf)

toto <- subsample(capreotf, dt = 900)
plot(toto)

Analysis of Animal Movements

v0.3.25

GPL (>= 2)

Authors

Clement Calenge, contributions from Stephane Dray and Manuela Royer

Initial release

2020-01-11