`geobubble`

Bubble chart of data located by latitude and longitude on a map.

Syntax

geobubble(lat, lon)

Draws a bubble at each coordinate; repeated locations make larger bubbles.

geobubble(lat, lon, sizedata)

Sets the bubble size from the values in sizedata.

geobubble(___, Name, Value)

Sets chart properties such as 'Title' or 'Basemap'.

gb = geobubble(___)

Also returns the chart object.

Description

geobubble places bubbles over a geographic map so that a count or measurement can be compared across places. Points with identical coordinates are combined into one bubble.

Input arguments

lat, lon: Vectors of latitudes and longitudes in degrees, of the same length.
sizedata: Vector with one value per point that sets the bubble area.

Output arguments

gb: GeographicBubbleChart object.

Example

Three cities

lat = [-23.55 -22.91 -15.78];
lon = [-46.63 -43.17 -47.93];
pop = [12.3 6.7 3.1];
geobubble(lat, lon, pop)

In the app, the chart is drawn below the code.

Notes

MatLivre draws the bubbles without a basemap.

geobubble