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The design principle of the information graphic should support the analytical task. [28] As William Cleveland and Robert McGill show, different graphical elements accomplish this more or less effectively. For example, dot plots and bar charts outperform pie charts. [29]
Pie chart of populations of English native speakers. A pie chart (or a circle chart) is a circular statistical graphic which is divided into slices to illustrate numerical proportion. In a pie chart, the arc length of each slice (and consequently its central angle and area) is proportional to the quantity it represents.
The Google Chart API allows a variety of graphs to be created. Livegap Charts creates line, bar, spider, polar-area and pie charts, and can export them as images without needing to download any tools. Veusz is a free scientific graphing tool that can produce 2D and 3D plots. Users can use it as a module in Python.
The following code generates the pie chart shown at right. Note that the default chart size and colors are used, and the value of "1" for the "other" parameter is only used for its "truth value" as a visible string—i.e., to say, yes, we want an "Other" entry in the legend (the same chart would result if "0" were used).
This template will display a pie chart of your importance assessment data, ... Text is available under the Creative Commons Attribution-ShareAlike 4.0 License; ...
There are different types of comparison diagrams called comparison diagram/chart in theory and practice, such as Table, data visualized in a tabular form; Matrix based models, for example the balanced scorecard; Quantitative charts such as line chart, bar chart, pie chart, radar chart, bubble chart, scatter diagram etc. Scale comparison diagram
This template adds a pie chart to the page using Graph extension Template parameters [Edit template data] This template prefers inline formatting of parameters. Parameter Description Type Status Radius radius Specify the radius of the pie in number of pixels Default 100 Example 100 Number suggested Legend Title legend The title that will appear above the legend, or '-' to hide it Default ...
I have just added a reference to Stephen Few essay against the use of pie charts. His work could be used to further expand the article, explaining the cons and pros (there are a few) of pie charts. He also makes a very good case against 3D pies. uiteoi 13:18, 2 February 2010 (UTC)