COA | R Documentation |
Function to calculate Short-term centers of activity positions from passive telemetry data. Based on technique described in: Simpfendorfer, C. A., M. R. Heupel, and R. E. Hueter. 2002. Estimation of short-term centers of activity from an array of omnidirectional hydrophones and its use in studying animal movements. Canadian Journal of Fisheries and Aquatic Sciences 59:23-32.
COA(ATTdata, timestep = 60, split = FALSE)
ATTdata |
an 'ATT' object created using |
timestep |
an integer containing the temporal bin size of center of activity calculations (in minutes), default 60 min |
split |
a conditional argument to split COA estimates by Tag.ID. Default is FALSE, which produces a single tibble with COAs from all individuals compiled. If TRUE, a list of tibbles produced with each Tag.ID seperated. |
Exports a 'COA' object that is a tibble (if split = FALSE) or a list of tibbles (if split = TRUE)
Input data needs to be setup using setupData
. 'COA' object required for HRSummary
## Import example datasets
data(IMOSdata)
data(taginfo)
data(statinfo)
## Setup data
ATTdata<- setupData(Tag.Detections = IMOSdata,
Tag.Metadata = taginfo,
Station.Information = statinfo,
source="IMOS")
## Estimate Short-term Center of Activities for all individuals
COAdata<- COA(ATTdata)
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