View source: R/conDisplacement.R
conDisplacement | R Documentation |
Calculate the net-displacement (distance) of fixes before and after a contact phase from the nearest contact pahse in time.
conDisplacement(traj, def = "all")
traj |
an object of the class |
def |
how to define the point-of-contact. The default is to define it as all fixes in a phase |
This function is used to compute the net displacement away from contacts by an animal before and after a contact phase. Net displacement represents an important variable related to the movement of the individual.
An move2 object with a new 'contact_displacement' column indicating the straight-line distance to the nearest (in time) contact phase (defined using parameter def). If there are no contacts associated with an individual the contact displacement is NA.
Long, JA, Webb, SL, Harju, SM, Gee, KL (2022) Analyzing Contacts and Behavior from High Frequency Tracking Data Using the wildlifeDI R Package. Geographical Analysis. 54, 648–663.
conProcess, conPhase, conTimelag
## Not run:
data(does)
doecons <- conProcess(does,tc=15*60,dc=50)
doephas <- conPhase(doecons,pc=60*60)
disp_f <- conDisplacement(doephas,def='first')
disp_l <- conDisplacement(doephas,def='last')
## End(Not run)
Add the following code to your website.
For more information on customizing the embed code, read Embedding Snippets.