Aside: If you are creating multiple bar charts and want to keep a common color palette, you can click the option “Show/Modify numerical (hexadecimal) color code”. Then, you can specify your own hex color code (just click in the color box to modify the code) every time you are creating a graph and thereby ensuring that it uses the same color.

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Our final bar graph (with new colors, a subtitle and a caption) now looks like this:




This will fill all required fields and you have an immediate output for you to talk about. Preload Datasets are available for both the One Categorical Variable and Two Categorical Variable tab.

Change colors

You can now change the colors of the bars to your liking. Check the “Select colors for barchart” option and click in the color boxes that are shown to change the color for that bar.

Change the title or add a subtitle or caption

You can (and probably should) override the default title of “Barchart” with something more meaningful. Just check the title box to provide your own title. Check the Subtitle or Caption box to provide these. 

New Features in the Explore Categorical Data App

The Explore Categorical Data app for analyzing one or two categorical variables got an overhaul. The two most important changes are

  • ​The inclusion of preloaded datasets from the textbook to reproduce tables and bar graphs appearing in Chapters 2 and 3 of the textbook. This is also useful for demonstrating the app to show its functionality.

  • The ability to change the default colors in the bar charts and to modify the title or include a subtitle or figure caption.  

Preloaded datasets

Besides providing your own categorical data in raw (i.e., individual observations) or summarized (as counts in a table) form, you can now select from a couple of datasets that are featured in the book.