Two days ago, Felix Salmon posted his Restaurant Pretentiousness Ratio, a formula which takes the prices of a wine list in relation to the prices of entrees to yield a scientific level of pretentiousness for any restaurant. For example Mermaid Inn has a low ratio of 1.6 while Cafe Gray has a whopping 4.7. Take what you will from the ratio, but as an entertaining snow day diversion at Eater HQ we decided to crunch the numbers on a sampling of restaurants around town to see the math in action. But first, the original formula:

RPR=W/E
W is what you might call the quarter-median wine price: take the red wines only (to make things a bit more manageable) and find the price of the wine such that 25% of the wines on the list are cheaper, and 75% of the wines on the list are more expensive.
E is simply the average price of a main course.