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Gallery: Line chart + Bubble chart

2 unique examples
Showing visual types:Bubble chart Icon for removing this tag Icon for this tag's benefits and pitfalls Icon for how to create this kind of visualisationLine chart Icon for removing this tag Icon for this tag's benefits and pitfalls

Benefits & pitfalls

Benefits & pitfalls: bubble chart

  • Using area or volume to represent data can distort data values, and exaggerate differences between values. For example, if the radius of the circle is used to represent data values, the area of the circle will quadruple if the data values double. There is also an issue of 'perceptual scaling' - the tendency of people to underestimate areas.

Benefits & pitfalls: line chart

  • Line-charts imply that data is continuously changing. If your data is discrete you might consider a bar-chart instead.

How to create your own

Create your own: bubble chart

  • Bubble charts can be created in a range of standard data applications such as Excel.

Google Data Explorer

Screenshot for 'Google Data Explorer'
This interactive tool developed by Google offers a large amount of data, ranging from databases on public debt in Europe (in the screenshot) to education statistics in California. It is fully flexible so the user can select can choose between line, char graphs and maps, as well as the contextual information to be displayed.
Average rating: 8.7 (3 votes)

Population projection

Screenshot for 'Population projection'
This is a very rich infographic that combines several visualisation types: bubble chart, population pyramid, comparative line charts, a map, pie charts and it is additionally fully annotated. The picture itself is crossed by a line (without reference axis) that communicates the main message of the infographic: the rapid population growth experienced by the UK in recent decades. The supplementary charts display information about population proportions, population densities, age and gender structure, comparison between migration related and “natural” population change, fertility rates during the last 35 years and lastly population changes by government region during 2007-08. The display is very rich and is successful at grabbing’s the reader’s attention by offering an appealing combination of related data.
Average rating: 6 (3 votes)