mosaic: mWorldMap – R documentation

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mWorldMap

Make a world map with ggplot2

Description

mWorldMap takes in one dataframe that includes information about different countries. It merges this dataframe with a dataframe that includes geographical coordinate information. Depending on the arguments passed, it returns this data or a ggplot object constructed with the data.

Usage

mWorldMap(
  data = NULL,
  key = NA,
  fill = NULL,
  plot = c("borders", "frame", "none")
)

Arguments

`data`	A dataframe with countries as cases
`key`	The column name in the `data` that holds the unique names of each country
`fill`	A variable in the `data` used to specify the fill color of countries in the map (note: if `fill` is not null, then `plot` cannot be set to "none")
`plot`	The plot desired for the output. `plot` = "none" returns the merged data that is the result of merging the `data` and the dataframe with the geographical coordinate information; `plot` = "frame" returns an empty (unplottable) ggplot object; `plot` = "border" (the default) returns a ggplot object with one geom_polygon layer that shows the borders of the countries

Examples

## Not run: 
gdpData <- CIAdata("GDP")      # load some world data

mWorldMap(gdpData, key="country", fill="GDP")

gdpData <- gdpData %>% mutate(GDP5 = ntiles(-GDP, 5, format="rank")) 
mWorldMap(gdpData, key="country", fill="GDP5")

mWorldMap(gdpData, key="country", plot="frame") +
geom_point()

mergedData <- mWorldMap(gdpData, key="country", plot="none")

ggplot(mergedData, aes(x=long, y=lat, group=group, order=order)) +
geom_polygon(aes(fill=GDP5), color="gray70", size=.5) + guides(fill=FALSE)  

## End(Not run)

mosaic

Project MOSAIC Statistics and Mathematics Teaching Utilities

v1.8.3

GPL (>= 2)

Authors

Randall Pruim [aut, cre], Daniel T. Kaplan [aut], Nicholas J. Horton [aut]

Initial release