assignment_column: Assign observations to zone or area person("Melanie",...

In allen-chen-noaa-gov/barebones.FishSET: Barebones discrete choice modeling

Assign observations to zone or area person("Melanie", "Harsch", role = c("aut"))

Description

Assign observations to zone or area person("Melanie", "Harsch", role = c("aut"))

Usage

assignment_column(
  dat,
  gridfile,
  hull.polygon,
  lon.dat,
  lat.dat,
  categ,
  closest.pt,
  lon.grid,
  lat.grid
)

Arguments

dat	Main data frame containing data on hauls or trips. Table in fishset_db database should contain the string 'MainDataTable'.
gridfile	Spatial data. Shape, json, and csv formats are supported.
hull.polygon	T/F If TRUE, creates convex hull polygon. Use if spatial data creating polygon are sparse or irregular.
lon.dat	Column containing longitude data in main data frame.
lat.dat	Column containing latitude data in main data frame.
categ	Column in gridfile that identifies the individual areas or zones. If gridfile is class sf, 'categ' should be name of list containing information on zones.
closest.pt	TRUE/FALSE If true, zone ID identified as the closest polygon to the point.
lon.grid	If gridfile is not shape or json file, specify column containing longitude data in gridfile.
lat.grid	If gridfile is not shape or json file, specify column containing latitude data in gridfile.

Details

Assign each observation to zones defined by a spatial data set. Converts point data from gridfile into polygons and then finds which polygon each observation in the main data frame is within. Use hull.polygon=T if data is sparse or irregular.

Value

Main data frame with new assignment column labeled zoneID.

allen-chen-noaa-gov/barebones.FishSET documentation built on March 1, 2024, 8:19 a.m.