What two ingredients go well together? That's what this website tries to illustrate, using a database of 623,630 recipes.

## What's a "Recipe Rating"?

The **Recipe Rating** is simply the average rating from a group of users who voted on the particular recipe. These ratings are on a scale
from 1 (the worst) to 5 (the best). To compare recipes from different origins, the original ratings are Bayesian weighted against the number of ratings, and then
scaled to a 1-5 scoring system.

## What's a "Pairing Index"?

Specifically, the **Pairing Index** is calculated using the average of all recipes with that pair of ingredients *divided by* the
sum of half of the mean of all the recipes that contain either ingredient. Basically all pairs of foods can be quantified, and the ones that have a Pairing Index that deviate from
the center can be labeled "bad" or "good":

The purpose of this **Pairing Index** is to determine how well a pair of ingredients is recieved in contrast to the individual ingredients in recipes by themselves. A **Pairing Index** that is greater than 1 indicates that the pair of ingredients works well in a recipe, better than on their own. A **Pairing Index** that is less than 1 indicates that the ingredients are better off by themselves, rather than together.

## Questions? Comments?

Feel free to tweet me @zack_118.