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R is a statistical computing package that is available via an open source license. R (R Core Team, 2019) may be downloaded from

The add-on R Commander provides new users with a graphical interface that makes using R far more intuitive.

R Commander (Fox and Bouchet-Valat 2019) may be downloaded from this site:


There are also R Commander plug-ins that are used in the examples:



There are a number of excellent resources online to help you learn to use R and R Commander. Here is a short list:

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