Go Back   Dreams in Vanadiel - Final Fantasy XI Forum > FFXI Game Related > Race & Job Type Q & A > Corsair

Post New Thread Reply
 
LinkBack (3) Thread Tools Display Modes
Old 05-20-2006, 09:05 PM   #16
Digital Wizard
Super Moderator
Holyknight Emblem
 
Icemage's Avatar
 
Join Date: Aug 2003
Location: Florida, USA
Posts: 6,207
Style: Light Theme V7

Thanks: 72
Thanked 528x in 341 Posts
My Mood:
Re: Phantom Roll: Knowing the Odds (long, math)

Quote:
Originally Posted by IfritnoItazura
Kinda off topic (please don't hurt me, moderators. >_< ), but where do I go (on web) to educate myself so I can understand the math behind this dicussion?
This is a reasonably simple explanation to the theory behind dice probability, and much of the myth and superstition behind it:

http://mathforum.org/library/drmath/view/56502.html

What Karinya and I did above was simply extend the concept of rolling dice to keep adding one die at a time until specific conditions were reached. Karinya used a statistical model, I used iterative programming, and we basically arrived at roughly the same conclusion - two paths to the same general goal.

Karinya basically took the concept of a single die roll: one value determined randomly between 1 and 6, then used a spreadsheet to create an expanded chart of the results of various additional rolls, then did some manipulation to the final results to get percentages.

My method used a program that simulates dice rolls, then sets conditions under which the rolling stops - the program then keeps rolling dice until it fulfills one of my terminating conditions, then records the result for tabulation at the end. It repeats this process one million times, then examines the frequency of each result.

Karinya's method is numerically accurate, but underlying math and conditions become increasingly complex as you start adding more conditions to the experiment. My method is less accurate, but is more tolerant of new test conditions.

To learn more about statistics, you'll probably need to take a formal course either in high school or college. It's possible to learn statistics from the web, but I don't recommend it; it's very easy to get confused and misunderstand many of the concepts behind probability and statistics.

---

Quote:
Originally Posted by Matera
Now, what would be really amazing if somebody got the stat boosts for each roll and figured out which of these strategies is the best.

(IE: Penalty of bust and chance weighed with gains and chance.)

Whoever does that gets a cookie and half of mine. Chocolate Chip, I may throw in milk if the table is organized.
As I mention above, I can easily add weighting to my program, but I need some reliable numbers to generate a valid weighting scheme.


Icemage
Icemage is offline   Reply With Quote Button by Aksannyi :)
Old 05-21-2006, 02:30 PM   #17
Veteran Member
Allied Ribbon of Glory
 
Karinya's Avatar
 
Join Date: Nov 2003
Posts: 2,074
Style: Light Theme V7

Thanks: 81
Thanked 435x in 236 Posts
   
Re: Phantom Roll: Knowing the Odds (long, math)

Yeah, I looked at doing something like that, but effectiveness numbers aren't known for all rolls. The ones that *are* known are consistent (I think), so you could reasonably speculate that the same pattern applies to others, I guess.

But there's still the problem of how much to discount the bust penalty since it only applies to one player while the bonuses apply to - how many players? It depends on which roll and the party setup.

Furthermore, some rolls may not have a bust penalty or it may be irrelevant (Evoker's and Healer's for CORs not subbing WHM, and Wizard's, Warlock's, Ninja, Gallant's and the pet rolls pretty much always). Aside from the interference with future rolls, which is difficult to quantify.


So basically I concluded that trying to do an "Expected Average Results" column in the analysis would require introducing too many additional unknown variables and the results wouldn't reliably represent anything useful.
__________________
Defeated: Maat, Divine Might, Fenrir, Kirin, Cactrot Rapido, Xolotl, Diabolos Prime, Kurrea, 9/10 Dynamis Bosses (missing Tav), Promathia, Proto-Ultima, Proto-Omega, 4 Jailers, Apocalypse Nigh, 6/6 Nyzul Bosses
RDM75, PLD75, DRG75, COR75, SCH61
Windurst Rank 10, Bastok Rank 10, San D'Oria Rank 9, ZMs & PMs Complete, AUMs Complete, Captain, Nyzul Floor 100 (5 Weapons, 3 WS), Moonlight Medal, WotG Mission 15, 1/3 Addons Complete
Karinya is offline   Reply With Quote Button by Aksannyi :)
Post New Thread Reply

Tags
knowing, long, math, odds, phantom, roll

Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are On
Pingbacks are On
Refbacks are On


LinkBacks (?)
LinkBack to this Thread: http://www.ffxionline.com/forums/corsair/55032-phantom-roll-knowing-odds-long-math.html
Posted By For Type Date
Allakhazam.com: Final Fantasy XI This thread Refback 04-06-2009 03:13 AM
Why you should be playing Final Fantasy XI: The corsair class This thread Refback 03-29-2009 07:54 PM
Phantom Roll - FFXIclopedia - a Wikia Gaming wiki This thread Refback 03-25-2009 07:49 PM

All times are GMT -8. The time now is 12:39 AM.
Site Powered by: vBulletin Version 3.8.1 Copyright ©2000 - 2009, Jelsoft Enterprises Ltd.
Search Engine Friendly URLs by vBSEO 3.3.0 RC2
©2001-2009 SQUARE ENIX CO., LTD. All Rights Reserved. Title Design by Yoshitaka Amano.
FINAL FANTASY and VANA'DIEL are registered trademarks of Square Enix Co., Ltd. SQUARE ENIX, PLAYONLINE and the PlayOnline logo are trademarks of Square Enix Co., Ltd.
Comments and posts are property of their authors. All the rest, including video, articles, compiled game data, and sections, unless otherwise noted, are
©2002-2009 FFXIOnline.com: Dreams in Vana'diel. All rights reserved.

no new posts
Page generated in 1.03385 seconds with 16 queries