Skip to contents

Save Primary Table's Centroid Columns to FishSET Database

Source: R/centroid_to_fsdb.R
centroid_to_fsdb.Rd

Save the unique centroid values from the primary table to the FishSET Database. Use this function if zone ID and centroid longitude/latitude are included in the primary table.

Usage

centroid_to_fsdb(
  dat,
  spat.name = NULL,
  project,
  zoneID,
  cent.lon,
  cent.lat,
  type = "zone"
)

Arguments

dat

Required, main data frame containing data on hauls or trips. Table in FishSET database should contain the string MainDataTable.

spat.name

Optional, a name to associate with the centroid table.

project

Name of project.

zoneID

Variable in dat that identifies the individual zones or areas.

cent.lon

Required, variable in dat that identifies the centroid longitude of zones or areas.

cent.lat

Required, variable in dat that identifies the centroid latitude of zones or areas.

type

The type of centroid. Options include "zone" for zonal centroids and "fish" for fishing centroids.

Details

In certain cases, the user may have the necessary spatial variables to run a discrete choice model included in the primary table when uploaded to FishSET, and does not need a spatial table to assign observations to zones or find centroids (e.g. by using create_centroid()). However, a centroid table table must be saved to the FishSET Database if a centroid option is used to define alternative choice (see create_alternative_choice()). cent_to_fsdb() allows users to save a zonal or fishing centroid table provided they have the required variables: a zone ID (zoneID), a centroid longitude (cent.lon), and a centroid latitude (cent.lat) column.