When we conduct some tests, such as ANOVA, the data set would probably
contain (treatment, performance) pairs. However, if the dataset has been
pre-organized, and only contain performance data, how can I read this
kind of data and conduct tests? For example, the original dataset is the
After preprocessing, it only contains the following two columns with the
first column representing group1, and the second, group2.
How can I read them? Should I introduce new variables, and how?
Thanks for your help!