assign_airzone: Assign locations to airzones

In bcgov/rcaaqs: Tools to implement CAAQS analysis for air quality

Assign locations to airzones

Description

With a data set containing station locations, calculate which airzones each station belongs to. Requires an sf object from the sf package containing the airzone names and locations (polygons).

Usage

assign_airzone(
  data,
  airzones,
  az = "Airzone",
  station_id = "ems_id",
  coords = c("lon", "lat")
)

Arguments

data	Data frame. Contains station ids and air quality data
airzones	sf PPOLYGON or MULTIPOLYGON reflecting airzone locations
az	Character. Name of airzones column in the 'airzones' sf object
station_id	Character. Name of the station_id column in 'data'
coords	Character vector. Names of the columns containing longitude and latitude (respectively) for each station. Defaults to 'lon' and 'lat'

Details

For British Columbia, consider using the airzones() function to get an sf object of BC airzones from the bcmaps package.

Examples

## Not run: 
# Using the airzones function from the bcmaps package
bc_airzones <- bcmaps::airzones()

by_airzones <- assign_airzone(data, bc_airzones)

## End(Not run)

bcgov/rcaaqs documentation built on Dec. 12, 2023, 9:21 a.m.