Mistake is error caused by human misunderstanding or some problem in the data gathering process (e.g., misspellings, people who didn't follow directions, data that have been entered into the computer incorrectly).
The R Sandbox The R Sandbox is a separate R window you can use to experiment with R code and play around with ideas from the course. It comes pre-loaded with the base R packages and all of the packages and datasets we reference in the textbook. ...