prefilter: Prefilter

In ianjonsen/duckConfit: State-space filtering code for RAATD data paper

Description

Prefilter

Usage

prefilter(dat, metadata, min_obs, min_days, vmax, sp = NULL,
  path2repo = NULL)

Arguments

dat	provide example royal penguin tracking data
metadata	provide example royal penguin metadata
min_obs	minimum number of observation records a deployment must have
min_days	minimum number days a deployment must last
vmax	maximum travel rate (m/s) for speed filter
sp	for future functionality, not currently used
path2repo	for future functionality, not currently used

Details

Prepare standardised track data for state-space filtering by performing further standardisation and culling unacceptably short deployments

The track data are fetched automatically from the RAATD repository by specifying a species' abbreviated name.

Value

writes a tibble to a .csv file with the following variables:

id	individual animal id
date	POSIX date-time
lc	location quality class
lon	longitude
lat	latitude
device_type	tag type: GPS, PTT, or GLS
keep	should record be used of ignored by SSM filter (logical)

Examples

## Not run: 
## prefilter RAATD royal penguin tracks
## load example data
data(rope)

pfd <- prefilter(
  dat = rope,
  metadata = meta,
  min_obs = 30,
  min_days = 5,
  vmax = 10
  )

## End(Not run)

ianjonsen/duckConfit documentation built on May 30, 2019, 4:36 p.m.