thinData: Thin acoustic telemetry data

In aspillaga/fishtrack3d: Analysis of Passive Acoustic Telemetry Data in 3D

Description

This function thins acoustic telemetry data into specified time intervals. For each interval, a receiver ID an a depth value are assigned depending on their probability distribution in the original data.

Usage

thinData(track.data = NULL, tag.id, rec.id, time.stamp, depth = NULL,
  time.int = "30min", depth.range = NULL, parallel = FALSE)

Arguments

track.data	data.frame frame with acoustic telemetry data containing the following columns: tag.id, rec.id, time.stamp, and depth. These arguments can be provided separately.
tag.id	vector with the ID codes of tagged individuals.
rec.id	vector with the ID codes of the receivers for each detection.
time.stamp	vector with the date and time of each detection in POSIXt format.
depth	vector with the depth values corresponding to each detection.
time.int	time interval to which data will be thinned, as given to the units argument of the round_date function in the lubridate package.
depth.range	vector with the minimum and maximum depth values, respectively, between wich the sampling of depths will occur.
parallel	option to apply the function in parallel (if TRUE). This will be passed to the .parallel argument of the ldply function in the plyr package.

Value

Data frame with 4 columns: tag.id, time.stamps, rec.id, and depth.

aspillaga/fishtrack3d documentation built on June 4, 2019, 9:14 a.m.