addAQILegend: Add an AQI Legend to a Map

In PWFSLSmoke: Utilities for Working with Air Quality Monitoring Data

Description

This function is a convenience wrapper around graphics::legend(). It will show the AQI colors and names by default if col and legend are not specified.

Usage

addAQILegend(
  x = "topright",
  y = NULL,
  col = rev(AQI$colors),
  legend = rev(AQI$names),
  pch = 16,
  title = "Air Quality Index",
  ...
)

Arguments

x	x coordinate passed on to the legend() command
y	y coordinate passed on to the legend() command
col	the color for points/lines in the legend
legend	a character vector to be shown in the legend
pch	plotting symbols in the legend
title	title for the legend
...	additional arguments to be passed to legend()

PWFSLSmoke documentation built on Nov. 23, 2021, 5:06 p.m.