You’ve got a dataset! In order to use it effectively in tools like R, Python, SPSS, or Stata, you’ll want to clean, format, and organize that dataset — especially if you have inconsistent or repeated information to deal with, or if you inherited a spreadsheet from someone else. Learn a range of methods to optimize your datasets for the environment in which you plan to do your data analysis, including the principles of Tidy Data and the organizational powers of the OpenRefine toolkit. Learn using one of our dataset examples, or bring your own!