The Graph software extension allows the creation of graphs by use of the <graph>...</graph> parser tag. The graphs include bar charts, pie charts, line charts, area charts, scatter plots, tag clouds, tree maps, and political maps.

Bar/line/area charts can be easily created by using Template:Graph:Chart; the documentation for this template explains its functions and use in extreme detail.

Since 2015, interactive graphs are available: mw:Extension:Graph/Interactive Graph Tutorial

See also mw:Extension:Graph/Guide.

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