[Guide] Type Coverage Analysis Ver. 2

[TwistedLogic]

When I released my initial analysis of type coverage in Uranium, I knew it had some issues. Luckily, Cataclyptic brought my attention to this thread, which addressed many of the problems I had with my own work as well as having some practical applications for building movesets. I won't bother you with the fine details of exactly how the math works, as it's explained pretty well by Ignus and X-Act before him. The TL;DR of it is that the spreadsheet takes the Pokemon of a metagame (preliminary OU list from our own poweroftiban) and looks at each one's type, ability, and defensive stats, then does a lot of summations in order to generate an overall score not only for each individual type, but also type combinations in movesets. Now, let's get into the data and how to use it, but first I'd like to thank X-Act, Ignus, and QxC4eva of the Smogon forums for doing the real leg work in this and allowing me to use their work to help advance the Uranium metagame.

Without further ado, I give you the Linearized Uranium OU Type Analysis. Feel free to look around.

Let's start with the more esoteric side so that those not reading all the way through can find the useful stuff at the bottom of the post:

Data

Table 1

Table 1 contains the coverage scores for movesets with two physical moves.

Table 2

Table 2 contains coverage scores for movesets with two special moves.

Table 3

Table 3 contains an average of the values in Tables 1 and 2.

Table 4

Table 4 contains the PATE, SATE, and MATE for each type.

Results

"But Twisted," you ask, "look at all these tables full of big numbers! What could they possibly mean?"

Well, as intimidating as this all may look what you really need to know of it is actually pretty simple. The score is actually a special factor that lets you calculate the minimum damage of a given move against an "average" Pokemon in the metagame by the following formula:

Attacking Stat * Base Power * Other Modifiers (STAB, Abilities, etc.) = Average Minimum % Damage
Attacking Type Effectiveness                                                

What this means is that the lower the ATE, the better coverage the type has. This gives us the following rankings for physical, special, and overall:

                   

As an example, let's take a look at poweroftibarn's SubPunch Empirilla with an Adament nature's Focus Punch:

361 * 150 * 1.5 = 88.5933%
91683  (Table 4)                       

Thus, unboosted Empirilla's Focus Punch does, on average, about 88% minimum damage (roughly 32% chance to OHKO). Does this mean that it deals 88% damage to any given Pokemon? No, but if you were to average out the minimum percent damage to everything in the OU meta, it should come out to that. Thus, it give you an idea of how much coverage the move has and around how much damage it'll do.

The dual charts are less directly practical, but have the same system of lower numbers being better. If you look at the chart, you can pick the row for the type your interested, and then pick the column of the other primary type on your Pokemon's moveset, and you get a number similar to one you'd get in the single type chart. This gives you an idea of how good the coverage of those moves together is. This allows for the creation of a coverage pairing ranking for each type, both physical and special:

Physical Next Best Coverage Type

Special Next Best Coverage Type

To end, I'd just like to thank Ignus, et al. once again for making this all possible. I hope this was helpful!