Summarising data using bar charts

December 12, 2009 | Ralph

A bar graph is a frequently used type of display that compares counts, frequencies, totals or other summary measures for a series of categories, e.g. sales in different market sectors or in quarters in a financial year. The bar graph can be laid out with the categories either on ...
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ggplot2: Back-to-back Bar Charts

September 23, 2009 | learnr

On the ggplot2 mailing-list the following question was asked: How to create a back-to-back bar chart with ggplot2? For anyone who don’t know what I am talking about, have a look on a recent paper from the EU. I’d like to create plots like the graph...
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