Data guidelines: A set of recommendations for clean and usable data

          

The extent to which a dataset follows a set of commonly expected guidelines will often determine how much time you have left to spend thinking about your analysis. Ideally, you might intend to spend 20% of your time cleaning the data for a project, and 80% planning and carrying out your actual analysis. But often, it might turn out to be the complete opposite. A messy, non-standardized dataset can end up taking up most of your time, so that when you finally bring it into a usable format, you realize you have to rush and finish up with your project.