Bubble chart of UK public spending by government department
Current rating4.4/5Impact:5Accuracy:442 votes
What are ratings?
Ratings let you assess a visualisation according to:
Impact: How much a visualisation makes you take notice of it
Accuracy: How well it portrays the true data behind it
Rate visualisations according to your own impressions and expertise. We also ask you to let us know how you
rate your own level of expertise in terms of data and visualisation, so that we can filter ratings further
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.
When using colours to portray data values or types, ensure that the colors used are accessible to all users. Online tools such as ColorBrewer (www.colorbrewer.org) can help identify issues with colours used.
Create your own
Area charts can be created in a range of standard data applications such as Excel.
Bubble charts can be created in a range of standard data applications such as Excel.
Examples presented on this site have been taken from published material available on the web. If you are the author of the example, and would like this removed from the site (or additional information provided), please contact us. Where shown, Ordnance Survey data is reproduced under Communities and Local Government Licence 100024857. Crown copyright material is reproduced with permission of the controller of HMSO.