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This workshop is intended for people who feel comfortable with the material covered in our Introductory Statistics Using R workshop. The ggplot2 package is a versatile tool for data visualization in the free statistical software package R. ggplot2 uses the “grammar of graphics” to build plots by adding the individual components of a plot layer […]

In recent years, there has been a dramatic increase in the use of online tools to collect survey data. This method of data collection is quick and inexpensive, and has the potential to reach large populations that are more diverse than traditional sampling methods. However, online surveys have the potential to result in a higher […]