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What are the current rank criterion [Resolved in b86] [resolved]

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ZZT the Fifth
196 posts
Here since the beginning
Topic Starter
ZZT the Fifth
I'd like to know what they are, because I've been getting an unusual amount of C's when clearing songs... you'd think they would be B's or A's, but no.

I'm going to hazard some guesses and say that the criterion in Ouendan and EBA for ranks were:

S-rank: Have at least 90% of your hits be 300's, and have no X's
A-rank: Have at least 80% of your hits be 300's? X's still allow an A
B-rank: Have at least 70% of your hits be 300's?
C-rank: At least 60% of the hits 300's?
D-rank: Anything below 60% 300's?

I think these were the criterion, but I'm not sure. Anyone wanna help me figure out a way to verify?
peppy
19,315 posts
Here since the beginning
peppy
S: >90% 300s and no misses
A: >80% 300s and no misses, or >90% 300s with misses
B: >70% 300s and no misses, or >80% 300s with misses
C: All others

I still have to implement D rank, too... but are these accurate?
RemmyX25
osu! Alumni
3,087 posts
Here since the beginning
RemmyX25
i know to get an S Rank, the criteria is exactly as follows:

300s: No less than 90%
100s: No more than 9%
50s: No more than 1%
Xs: None.

Source: http://en.wikipedia.org/wiki/Elite_Beat_Agents (i know i know its Wiki, but it hasnt changed in at least 6 months! I think its legitimate!!)

Perfects are not required, as missing a dot on a slider will still result as a 100.
So in theory, people can get lower scores with an S rank than those with higher scores and an A or B rank.

I'm not sure on the exact criteria for the other ranks.
peppy
19,315 posts
Here since the beginning
peppy
I have updated the latest build to use the criteria stated in this post.
[deleted user]
[deleted user]
Is S-ranking working properly?

http://sanchny.googlepages.com/Sranking.jpg

Edit: Thanks. :)
Last edited by [deleted user] , edited 1 time in total.
peppy
19,315 posts
Here since the beginning
peppy
I had a feeling i broke this.

float ratio300 = (float)count300 / totalHits;
float ratio50 = (float)count300 / totalHits;

*ahem* these things happen when coding at 4am :D.

Will be fixed in tonight's build.
[deleted user]
[deleted user]

RemmyX25 wrote:

i know to get an S Rank, the criteria is exactly as follows:

300s: No less than 90%
100s: No more than 9%
50s: No more than 1%
Xs: None.
This is not correct. I have the following scores on Ouendan 2:
Sumo Wrestler (Okuru Kotoba), Easy: S rank
300s: 57 (95%)
100s: 1 (1.67%)
50s: 2 (3.33%)
Xs: 0

Hair stylist (Julia ni Shoushin), Easy: S rank
300s: 95 (94%)
100s: 4 (3.96%)
50s: 2 (1.98%)
Xs: 0

The "50s: No more than 1%" is what I'm questioning here.

I don't have any proof of the following, but my theory is that:
- You need no misses
- You need 93.33% total score of the maximum. The maximum is based on 300 points for all notes. So the cutoff for 100s does work out to no more than 10% of the total notes (assuming no 50s and no misses), since it's worth a third of the 300s.
If you recalculate my scores above, it comes out to 96.11% on Sumo Wrestler and 95.71% on hair stylist.

Again, I have no proof of this, this is just based on having played the games and gotten many border A/S scores. Thoughts?
Extor
osu! Alumni
370 posts
Here since the beginning
Extor

sanchny wrote:

This is not correct. I have the following scores on Ouendan 2:
Sumo Wrestler (Okuru Kotoba), Easy: S rank
300s: 57 (95%)
100s: 1 (1.67%)
50s: 2 (3.33%)
Xs: 0

Hair stylist (Julia ni Shoushin), Easy: S rank
300s: 95 (94%)
100s: 4 (3.96%)
50s: 2 (1.98%)
Xs: 0

The "50s: No more than 1%" is what I'm questioning here.

I don't have any proof of the following, but my theory is that:
- You need no misses
- You need 93.33% total score of the maximum. The maximum is based on 300 points for all notes. So the cutoff for 100s does work out to no more than 10% of the total notes (assuming no 50s and no misses), since it's worth a third of the 300s.
If you recalculate my scores above, it comes out to 96.11% on Sumo Wrestler and 95.71% on hair stylist.

Again, I have no proof of this, this is just based on having played the games and gotten many border A/S scores. Thoughts?
Wow, that can be true. But to "counter" that, I can say that it isn't the same to miss 10% of 100s at the start of the song, to miss them at the end of it. And you will probably get the same rank if you mess the order (And you will get a score higher than 93.33% in the first example).

Anyway, what you say corrects the 50s issue. But then... we should need to know how they affect the ranks. :S
[deleted user]
[deleted user]

Extor wrote:

I can say that it isn't the same to miss 10% of 100s at the start of the song, to miss them at the end of it. And you will probably get the same rank if you mess the order (And you will get a score higher than 93.33% in the first example).
Wait, what? I'm not talking about score, only rank and accuracy. Score is independent of rank because of combo breaks and spinner bonuses. The 93.33% "score" that I gave was only in terms of total beats hit. It's not points score, but a percentage of perfect hits, where:
Total = 3*(# of notes)
300 = 3pts
100 = 1pt
50 = .5 pts

So what I'm saying is that your "accuracy point" total has to be at least 93.33% of 3 times the number of [notes|beats|hits] in the song in order to get an S.
Extor
osu! Alumni
370 posts
Here since the beginning
Extor
Oh, sorry for that then. What you say can be true! =O

If we could figure out the % needed for each rank now...
peppy
19,315 posts
Here since the beginning
peppy
The rank calculations in osu! will be unlikely to change to keep things consistent, and because I feel they represent ouendan to a level that can't be disputed without overanalysis like this. Feel free to keep this discussion going, though :p.
RemmyX25
osu! Alumni
3,087 posts
Here since the beginning
RemmyX25

sanchny wrote:

RemmyX25 wrote:

i know to get an S Rank, the criteria is exactly as follows:

300s: No less than 90%
100s: No more than 9%
50s: No more than 1%
Xs: None.
This is not correct. I have the following scores on Ouendan 2:
Sumo Wrestler (Okuru Kotoba), Easy: S rank
300s: 57 (95%)
100s: 1 (1.67%)
50s: 2 (3.33%)
Xs: 0

Hair stylist (Julia ni Shoushin), Easy: S rank
300s: 95 (94%)
100s: 4 (3.96%)
50s: 2 (1.98%)
Xs: 0

The "50s: No more than 1%" is what I'm questioning here.

I don't have any proof of the following, but my theory is that:
- You need no misses
- You need 93.33% total score of the maximum. The maximum is based on 300 points for all notes. So the cutoff for 100s does work out to no more than 10% of the total notes (assuming no 50s and no misses), since it's worth a third of the 300s.
If you recalculate my scores above, it comes out to 96.11% on Sumo Wrestler and 95.71% on hair stylist.

Again, I have no proof of this, this is just based on having played the games and gotten many border A/S scores. Thoughts?


Holy Shitake Mushrooms. i never would have figured that math.

Alright Alright, so its a bit off. It might have been tweaked between EBA and Ouendan 2, who knows. it was a close estimate!




And did you have to go through all that trouble just to prove me wrong?!
[deleted user]
[deleted user]

peppy wrote:

The rank calculations in osu! will be unlikely to change to keep things consistent, and because I feel they represent ouendan to a level that can't be disputed without overanalysis like this.
It's not overanalysis, it's noticing that it's wrong and doesn't represent Ouendan. It's easily disputed with... a picture. Want one of the two scores I got that have more than 1% 50s and still an S? :P
I wasn't looking to prove what the rank was; I just went back to Ouendan 2 to play through Easy today for completeness' sake. It doesn't take any analysis to eyeball those scores and notice that the 50s were higher than 1%. :P

Poor 50s get no love. :(
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