Many years of research within carbohydrate chemistry have enabled explanations and utilizations of these different effects governing stereoselectivity. However, the hierarchy of these "rules" is still not entirely well understood, and the determination of the most important effects for the stereochemical outcome is often based on chemical intuition and trial and error, especially in cases where NGP is not possible. An incomplete or wrong understanding of such rules can make them a hindrance instead of a help. Thus, we were interested in investigating what a statistical analysis of experimental reaction data could teach us about the glycosylation reactions and the rules that govern stereoselectivity.