Gallery: Pie chart

Proportion of average weekly household expenditure by rural and urban areas, 2005-6.

Spider pie graph of deaths by year 1854-1855.

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.

This infographic presents the final medal count for the 2008 Beijing Olympics in several dimensions. The central part shows the distribution of medals by continent using proportional sized pie charts to reflect the count. The inner circles of the pie charts are split by the type of medal. The same technique is applied in the other dimensions presented: medals by geopolitical groups (China, EU, ex soviet republics) , by sport (swimming, athletics, gymnastics) , by GDP and by population. It also contains full information of the final medal count by country and a day-by-day gold medal count (annotated bar char in the lower half). All parts of the visualisation are commented to give an overall picture of the event.

County level 2008 US presidential election returns.

The matrix chart divides the screen into a grid. Rows represent the values in one text column (e.g., political candidate) and columns represent another text column (e.g., states of the US). Each cell then shows a circle or bar that represents the value for its row/column combination (e.g., contribution to Hillary Clinton from New York).

A modification of the radar plot, it is useful in the presentation of multivariate data.

Breakdown by area of under-18 profiles on national DNA database.

UK consumer spending broken down into categories (bubble size) and, within that, durability (pie chart).

This visualisation is an example of a square pie. A square is divided into 10x10 fields, and for each number, as many fields are filled in as there are percent. Consequently, the numbers remain readable by simply counting the number of fields covered by one colour. Taking a hint from squarified treemaps, the areas should also be as square as possible for better comparability.

Male female distribution of unemployment by location.

This chart shows that that there are different numbers of people who find that various professions 'prestigious'.

This is an illustration of Britain's Budget for 2010. It is a variation of the pie chart accompanied by information of the relative share of each slice in billions of Pounds.

Interactive tool that combines the power of a cartogram, a bar chart and a pie chart to explore possible outcomes of the 2010 election.

Ethnic minority breakdown in a Rotherham ward.

Data on women in information technology using square pie. A square is divided into 10x10 fields, and for each number, as many fields are filled in as there are percent. Consequently, the numbers remain readable by simply counting the number of fields covered by one colour. Taking a hint from squarified treemaps, the areas should also be as square as possible for better comparability.<br />The square pie chart is for completely flat data that adds up to 100%, whereas the treemap shows structured data: a hierarchy. They may end up looking the same, but the meaning is not.