Dear Experts,

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 following:

group1 78.9 group2 32.7 group2 45.7 group1 50.2 group2 56.3 ...

After preprocessing, it only contains the following two columns with the first column representing group1, and the second, group2.

78.9 32.7 50.2 45.7 . 56.3 ...

How can I read them? Should I introduce new variables, and how? Thanks for your help!

Wen-Feng