subsetMarCadAIS: Subset Marine Cadastre AIS Data to Region

In PAMscapes: Tools for Summarising and Analysing Soundscape Data

Subset Marine Cadastre AIS Data to Region

Description

Subsets the full download files from Marine Cadastre to a smaller region so that they are easier to work with

Usage

subsetMarCadAIS(
  inDir,
  outDir,
  latRange = c(20, 50),
  lonRange = c(-140, -110),
  name = "West_",
  overwrite = FALSE,
  progress = TRUE
)

Arguments

inDir	directory containing Marine Cadastre AIS CSV files to subset
outDir	directory to write subsetted files to
latRange	range of desired latitudes (decimal degrees)
lonRange	range of desired longitudes (decimal degrees)
name	prefix to append to new filenames
overwrite	logical flag to overwrite existing files
progress	logical flag to show progress bar

Value

invisibly return new file names

Author(s)

Taiki Sakai [e-mail]

Examples

outDir <- tempdir()
localFiles <- subsetMarCadAIS('AISData', outDir=outDir,
                              latRange=c(20, 50), lonRange=c(-140, -110),
                              name='West_')

PAMscapes documentation built on April 4, 2025, 2:17 a.m.