map_tracks: Plot Atlantic basin hurricane tracks

In hurricaneexposure: Explore and Map County-Level Hurricane Exposure in the United States

Description

Plot the tracks of any selected storms in the hurricane tracking dataset for the Atlantic basin. This function allows you to plot a new map or add the tracks to an existing ggplot object.

Usage

map_tracks(
  storms,
  plot_object = NULL,
  padding = 2,
  plot_points = FALSE,
  alpha = 1,
  color = "firebrick"
)

Arguments

storms	Character vector with the names of all storms to plot. This parameter must use the unique storm identifiers from the 'storm_id' column of the 'hurr_tracks' dataframe.
plot_object	NULL or the name of a ggplot object to use as the underlying plot object. If NULL, the function will generate a new map of the eastern US states using 'default_map'.
padding	Numerical value giving the number of degrees to add to the outer limits of the plot object (or default map if 'plot_object' is left as NULL) when cropping hurricane tracks.
plot_points	TRUE / FALSE indicator of whether to include points, as well as lines, when plotting the hurricane tracks. These points show the times for which observations were recorded in the hurricane track data.
alpha	Numerical value designating the amount of transparency to use for plotting tracks.
color	Character string giving the color to use to plot the tracks.

Value

Returns a ggplot object with plotting data for the storm tracks of the selected storms. This object can be printed directly or added to with other ggplot2 commands.

Examples

# Ensure that data package is available before running the example.
#  If it is not, see the `hurricaneexposure` package vignette for details
# on installing the required data package.
if (requireNamespace("hurricaneexposuredata", quietly = TRUE)) {

map_tracks(storms = "Sandy-2012")
map_tracks(storms = "Floyd-1999", plot_points = TRUE)
map_tracks(storms = c("Sandy-2012", "Floyd-1999"))
a <- map_tracks(storms = "Sandy-2012", color = "blue", alpha = 0.3)
b <- map_tracks(storms = "Floyd-1999", plot_object = a)
b
}

Example output

To use this package, you must install the hurricaneexposuredata
package. To install that package, run
`install.packages('hurricaneexposuredata',
repos='https://geanders.github.io/drat/', type='source')`. See the
`hurricaneexposure` vignette for more details.

hurricaneexposure documentation built on March 26, 2020, 8 p.m.