map_presence_absence: Automated mapping of presence-absence data

In gregorypenn/PatricksPlants: Tools for Patrick Alexander's Plant Observation Data

Description

map_presence_absence creates a map of presence-absence data.

Usage

map_presence_absence(df, maptype = "toner-lite", alpha = 0.5)

Arguments

maptype	A Stamen maptype: terrain, terrain-background, terrain-labels, terrain-lines, toner, toner-2010, toner-2011, toner-background, toner-hybrid, toner-labels, toner-lines, toner-lite, or watercolor.
alpha	A transparency value between 0 and 1.
data	A dataframe with columns: presence, latitude, longitude.

Details

Presence-absence data are mapped over a Stamen basemap. Overplotting is addressed to some degree with transparence, by default alpha = 0.5. Coordinate datum is assumed to be WGS84.

Value

A plot of location data on a map.

Examples

boer4 <- presence_absence("BOER4", patricks_plants)
map_presence_absence(boer4)

gregorypenn/PatricksPlants documentation built on March 11, 2021, 9:45 a.m.