Visualizing Missing Data

March 22, 2011

(This article was first published on Jason Bryer » R, and kindly contributed to R-bloggers)

There are several graphics available for visualizing missing data. The following graphic was inspired by many sources. However, I wanted a version using ggplot2. What is visualized here is the percent missing for each variable in the PISA data across countries. The code will be available as part of the multilevelPSA package I am currently developing. It is being hosted by R-Forge at


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