Thursday, 20 June 2013

"Why have my ratings changed!?"

I'm getting quite a few questions about changes to rating values, mostly in the form of "why have my ratings changed?"

The short answer is - ratings have changed because 0.8.6 did a big artillery reshuffle.

Basically, most of the high-tier arties got raised a level or two in 0.8.6, so for people who played these SPGs their average tier went up. And because all the ratings use average tier information (some directly, some less directly), the ratings change from that (most by quite small values).

I have already adjusted Performance Rating a bit to compensate for that (for example, I removed the "average tier adjustment" of +2 tiers for SPGs that was there). Still I will check later on if  more tweaks are needed.

For WN7 and ER I don't control these formulas so I will wait until their creators decide to change them (or decide to leave them as they are).

But in any case - these changes apply consistently to everyone, and I retro-fitted them to previous snapshots to avoid any strange "ratings jumps", so hopefully they don't cause much disruption.

P.S. Also, the biggest confusion is for servers where 0.8.6 is not applied yet, so they will see their t8 arties as t10 arties already in NoobMeter. Hopefully they get 0.8.6 soon and all is well again.

P.P.S. Creators of ER rating have declared they will not adjust the ER formula, but will adjust the way it is interpreted.
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55 comments:

  1. Unknown28 June 2013 at 12:04

    I think the KD ratio is wrong.

    It looks like it's taking Kills divided by Survived, rather than Kills divided by Deaths.

    ReplyDelete
    Replies
    1. NoobMeter28 June 2013 at 12:16

      Hmmm...

      I checked on my account and it seems to match what I expect it to be ("destroyed / (battlesParticipated - battlesSurvived)").

      I also checked the code and that is what it calculates and it uses the same formula as above.

      Can you please provide examples using specific players where you think it is wrong?

      Is the total K/D wrong, or just the "interval" ("recent") ones?

      Delete
  2. Unknown29 June 2013 at 01:32

    Looks like it's the interval, not the overall:

    http://i.imgur.com/5lkeHYy.png

    81 kills
    35 battles
    19 survived battles (54.29%)
    16 deaths
    5.06 Kills to Deaths

    8005 kills
    5409 battles
    1934 survived battles (35.77%)
    3473 deaths
    2.31 Kills to Deaths

    ReplyDelete
  3. Unknown29 June 2013 at 01:40

    It also seems like there are some rounding errors or something else weird...

    Here's the whole thing:

    http://i.imgur.com/zW6xNs8.png

    For last 7 days
    368 kills
    201 battles
    86 survived battles (42.79%)
    115 deaths
    3.2 kills to deaths

    For 1000 battles

    1742 kills
    968 battles
    383 survived battles (39.57%)
    585 deaths
    2.98 kills to deaths


    As you can see, the KD is not quite right, but I am using the average kills and survived battles %s to back calculate what the kills and deaths would be... so maybe it's all just rounding errors. Maybe I am doing something wrong, but the overall matches!

    ReplyDelete
    Replies
    1. NoobMeter29 June 2013 at 06:54

      Thanks for the examples. I think it is something rounding related.

      But in any case I rewrote the interval K/D rating calculation so hopefully it is more accurate now.

      Delete
  4. Unknown6 July 2013 at 14:41

    Hi, do you mind checking something for me? My Korean in-game ID '제이Jay' isn't working through the noobmeter website (comes up as 'check spelling). I also couldn't log in through the Korean Wargaming OpenID, which makes me assume something is wrong with the account and not my spelling. Thanks

    ReplyDelete
    Replies
    1. NoobMeter6 July 2013 at 14:58

      I suspect Wargaming Korea has banned NoobMeter as a client :/. At least I get HTTP error 403 upon Korean requests.

      I will try to restart the server with a different IP and see if that helps.

      Delete
    2. Unknown6 July 2013 at 22:15

      Hey, thanks a bunch! I've just searched my ID again and it seems to be working now.

      The server restart/different IP must have done it.

      Thanks!!

      Delete
    3. NoobMeter6 July 2013 at 22:29

      No worries, thanks for reporting. The problem is that it could happen again. But let us hope not.

      Delete
  5. Unknown7 July 2013 at 11:32

    It would be nice if on your profile page it would display any Top 30 lists your tank is on and a link to said list.

    ReplyDelete
    Replies
    1. NoobMeter18 July 2013 at 22:27

      I like this suggestion, but there are some technical concerns I have about implementing it.

      Delete
  6. Anonymous8 July 2013 at 13:56

    It would be great if the ratings also considered if premium tanks/ shells were used.
    The performance of a player with regular shells destroying a tank with couple of hits is definitely better than somebody who 1 shotted the tank with premium shell.

    ReplyDelete
    Replies
    1. NoobMeter18 July 2013 at 22:26

      Unfortunately WG does not provide this information.

      Delete
  7. nbw10 July 2013 at 00:45

    Off topic: you know that noobmeter doesn't work without the "www" prefix, right? It's good practice to use only one main domain but the site should redirect to the proper setting on its own. I prefer the setting without the "www" with "www" acting as an redirect but it's up to you to decide. Either way - currently only the www.noobmeter.com works (and "new.noobmeter" whatever that is)

    It's probably just a misclick in the configuration of the domain and should be easy to solve.

    ReplyDelete
    Replies
    1. NoobMeter18 July 2013 at 22:24

      Yes, good point, thanks for letting me know. Fixed now.

      Delete
  8. Unknown14 July 2013 at 15:02

    Off topic since I do not know where else to post this, but if we upload the wrong replay, how do we remove it? Thanks.

    ReplyDelete
    Replies
    1. NoobMeter18 July 2013 at 22:23

      I will add this feature soonish.

      Delete
    2. NoobMeter20 July 2013 at 15:26

      I added a "hide replay" feature so no one else sees it (it doesn't remove it completely though) - let me know how it works for you.

      Delete
  9. Unknown18 July 2013 at 16:19

    Hey, a bit offtopic - is it possible to delete replay you uploaded on noobmeter? I chosen wrong file and now i have really crappy replay uploaded.

    ReplyDelete
    Replies
    1. NoobMeter18 July 2013 at 22:23

      I will add this feature soonish.

      Delete
    2. Unknown19 July 2013 at 05:40

      Thank you - that will be great! Also thanks for all the good work you do!

      Delete
    3. NoobMeter20 July 2013 at 15:27

      Tomasz, I added a "hide replay" feature so no one else sees it (it doesn't remove it completely though) - let me know how it works for you.

      Delete
  10. Cyberus20 July 2013 at 17:05

    Hi.

    Is it normal that stats are not acurate up to date?

    I have curently 9748 battles but your site still shows 9637.

    Though i also can see only overal results and for last 1000+ battles....while if i check someone else i can see 7 days stats as well.

    tnx

    ReplyDelete
    Replies
    1. NoobMeter20 July 2013 at 21:42

      No, not normal at all - but what is your username and server, so I can investigate?

      Delete
  11. Unknown21 July 2013 at 23:49

    Can you change "105 leFH18B2" level fron 4 to 5? After 0.8.6 it is true. Thanx

    ReplyDelete
  12. Unknown24 July 2013 at 05:44

    My account not update last night.
    Sedziwoj

    ReplyDelete
    Replies
    1. NoobMeter24 July 2013 at 08:27

      Pretty sure that is due to patch.

      Delete
    2. NoobMeter24 July 2013 at 08:42

      ... patch 8.7 which WG deployed, I mean.

      Delete
    3. Unknown24 July 2013 at 14:36

      Hm, Grzybu has his stats, so... but maybe patch start meanwhile stats update.

      Delete
  13. Unknown24 July 2013 at 14:36

    This comment has been removed by the author.

    ReplyDelete
  14. Unknown25 July 2013 at 01:18

    Next problem,
    http://www.noobmeter.com/tank/eu/MT25
    and this tank show in my last stats, but i dont have it in garage, so it must be some bug.

    Sedziwoj

    ReplyDelete
    Replies
    1. NoobMeter25 July 2013 at 01:21

      That is because WG changed all your old T-50-2 battles to be under MT-25, so for NoobMeter they seem just appeared (as it had no MT-25 battles for you before).

      Delete
    2. Unknown25 July 2013 at 05:58

      great WG :D

      Delete
  15. PX26 July 2013 at 06:26

    Is the omission of the E-25 also a part of Wargamings API not returning certain tanks?

    ReplyDelete
  16. Anonymous26 August 2013 at 01:39

    Hello, 1 question about stats... about 1,5 month ago my account was resetted by WG for my request.
    In my stats are numbers from before reset eq. fights, tanks but there is new clan.
    Stats are stable (nothing changed except clan) from date of reset.
    Could you fix it?
    I wrote this comment, becouse I can't find contact to you.
    Thanks and BTW - good work.
    My ingame nick - wi_tek.

    ReplyDelete
    Replies
    1. NoobMeter31 August 2013 at 23:31

      I cleared your account, it should reread it now (still cached so in a few hours).

      Delete
    2. Anonymous3 September 2013 at 04:13

      thanks a lot :)

      Delete
  17. Captain_Hindsight12 September 2013 at 06:52

    Hi!

    My battles in the T-34-3 are not showing up.

    User Captain_Hindsight (EU)

    Thanks!

    ReplyDelete
  18. gdzies23 September 2013 at 07:02

    Hi,

    how can I remove my replay?

    Regards

    ReplyDelete
    Replies
    1. NoobMeter23 September 2013 at 07:31

      You can hide it. Then only you can see it.

      Delete
    2. gdzies24 September 2013 at 00:48

      How can I hide? I do not see any option to do this.

      Delete
    3. NoobMeter24 September 2013 at 00:59

      You have to be logged in using same WG user account as made the replay.

      Delete
    4. gdzies24 September 2013 at 01:41

      I am logged into my account, but I cannot locate this option :(

      Can you remove the replay from my account?

      Delete
    5. NoobMeter24 September 2013 at 02:23

      Send me the link.

      Delete
    6. gdzies24 September 2013 at 04:05

      http://www.noobmeter.com/playerReplays/eu/gdzies/506359587

      thanks

      Delete
    7. NoobMeter24 September 2013 at 04:17

      Replay hidden.

      Delete
  19. gdzies24 September 2013 at 01:40

    This comment has been removed by the author.

    ReplyDelete
  20. Anonymous3 December 2013 at 10:55

    moje konto jest po resecie neros2402 prosze o aktualizacje moich statystyk wlacznie z historią klanu

    ReplyDelete
  21. C4MO2 April 2014 at 13:22

    Sorry to request a support question here, but our clan changed its name a while back from LIA to FENRIR (FNRIR in WOT), can you reset it so that if someone searches for FENRIR on Noobmeter they can find us?

    LIA = OLD (Nov-2013) Gone
    FNRIR = NEW

    ReplyDelete
  22. Unknown18 April 2014 at 11:32

    deadsmile
    15.04.2014 - 16.04.2014 - Error is detected
    I beg to correct statistics on these tanks I went out for a long time (this is seen count fights)
    Pz.Kpfw. IV Ausf. H
    Pz.Kpfw. III

    ReplyDelete
  23. rumburak330 April 2014 at 06:55

    I think there is something wrong with my stats (rumburak3 EU server). Column "last 1000 battles" shows adverse WN8 - while all the other parameters - comparing to other column are on equal/higher levels (performance/efficiency/WN7, damage etc). Could you please re-check it?

    ReplyDelete
  24. Unknown26 September 2014 at 02:30

    My stats have become somewhat confused since the 9.3 update (OzzyOnTap)

    ReplyDelete
  25. _krisu27 September 2014 at 13:00

    the second time I statistics are falling even as I do not play lost nearly 150 points. and every day I was ahead. why

    ReplyDelete

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