Create a U.S. Tilegrid Choropleth Map in ggplot2 in style of The Economist

Usage

asn_tilegrid(
  data = df,
  data_source = "Source",
  plot_title = "Plot Title",
  state_column = "state_column_name",
  numeric_column = n,
  plot_panel_color = "#ffffff",
  palette = c("#FCC8B4", "#FAAA90", "#F58469", "#EF1B26"),
  breaks = c(1, 2, 6, 11),
  zero_color = NULL,
  na_color = NULL
)

Arguments

data: A data frame, comprising a column with 2-letter USPS state abbreviations and a column with a numeric variable to be visualized in a tilegrid choropleth map.
data_source: Source of the numeric data visualized in the choropleth.
plot_title: Plot title.
state_column: Column containing 2-letter USPS state abbreviations.
numeric_column: Column containing numeric data being visualized in choropleth.
plot_panel_color: Background color for plot.
palette: Vector of hex colors mapping numeric column to choropleth map fill color.
breaks: Numeric vector of breaks corresponding to colors in the color palette mapping to the numeric column.
zero_color: Optional hex color to indicate states with a 0 numeric value.
na_color: Optional hex color to indicate states with missing values.

Value

ggplot2 object

Examples

asn_tilegrid(
  data = neph_per_100K_df,
  data_source = "AMA PPD and U.S. Census Bureau.",
  plot_title = "Ratio of Nephrologists per 100K Adult Population",
  state_column = "MailState",
  numeric_column = neph_per_100k,
  plot_panel_color = "#ffffff",
  palette = c("#f0f8ff", "#a0bdd8", "#5081b2", "#00468b"), 
  breaks = c(2.21, 3.1, 4, 5.6), 
  zero_color = NULL,
  na_color = "#EEECE6"
)