elo | Elo rating system is a method for calculating the relative

 by   iain Ruby Version: Current License: No License

kandi X-RAY | elo Summary

kandi X-RAY | elo Summary

elo is a Ruby library. elo has no bugs, it has no vulnerabilities and it has low support. You can download it from GitHub.

The Elo rating system is a method for calculating the relative skill levels of players in two-player games such as chess and Go.
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            kandi-support Support

              elo has a low active ecosystem.
              It has 149 star(s) with 34 fork(s). There are 6 watchers for this library.
              OutlinedDot
              It had no major release in the last 6 months.
              There are 1 open issues and 2 have been closed. On average issues are closed in 296 days. There are 6 open pull requests and 0 closed requests.
              It has a neutral sentiment in the developer community.
              The latest version of elo is current.

            kandi-Quality Quality

              elo has 0 bugs and 0 code smells.

            kandi-Security Security

              elo has no vulnerabilities reported, and its dependent libraries have no vulnerabilities reported.
              elo code analysis shows 0 unresolved vulnerabilities.
              There are 0 security hotspots that need review.

            kandi-License License

              elo does not have a standard license declared.
              Check the repository for any license declaration and review the terms closely.
              OutlinedDot
              Without a license, all rights are reserved, and you cannot use the library in your applications.

            kandi-Reuse Reuse

              elo releases are not available. You will need to build from source code and install.
              elo saves you 122 person hours of effort in developing the same functionality from scratch.
              It has 307 lines of code, 39 functions and 8 files.
              It has medium code complexity. Code complexity directly impacts maintainability of the code.

            Top functions reviewed by kandi - BETA

            kandi has reviewed elo and discovered the below as its top functions. This is intended to give you an instant insight into elo implemented functionality, and help decide if they suit your requirements.
            • Calculates a player
            • Add a game .
            • Gets the base factor based on the base factor .
            • Creates a new score
            • Processes the result set
            • Add a Rule
            • Returns a new Prediction
            • Returns a new opponent .
            • Returns a new opponent .
            • Play a player .
            Get all kandi verified functions for this library.

            elo Key Features

            No Key Features are available at this moment for elo.

            elo Examples and Code Snippets

            No Code Snippets are available at this moment for elo.

            Community Discussions

            QUESTION

            How to recursively calculate rows based on previous rows in Snowflake?
            Asked 2022-Apr-08 at 21:28

            I'm trying to build a performance score on each player in my table and use this to run some analysis. I've tried to use the Elo ranking using the player's score in the game vs themselves in the prior game. The game is a time-trial race so the faster they complete the better their performance. I simulate a win (1) when the current race is faster than their previous race, a loss (0) when it is slower and draw (.5) when the timing difference is 0.

            There are two components to Elo's algorithm...the Outcome Estimation for all players (two in my case - Ea, Eb) and the ranking update (Ra, Rb).

            I have the current setup to simulate one calculation

            ...

            ANSWER

            Answered 2022-Apr-08 at 21:28

            So reaping the point that values calculated by this process are meaningless. Here is how you can do it. I stripped the formula down to avoid math errors that occur in the CTE due to ambiguous values selection occurring, which can be avoided but each values needs to only refer to the r or d values and not the prior calculated intermediate values of the "same row"

            So with this data:

            Source https://stackoverflow.com/questions/71799967

            QUESTION

            Global Elo leadeboard with multiple tables
            Asked 2022-Mar-21 at 18:35

            I'm trying to create elo based leaderboard from multiple tables. Table structures are shown down below. What I am looking for is query that would sum elo from all tables into one for every single player that is in any of the tables and then order it desc to get top 10 players with global elo.

            players_mode_thebridges

            id name elo 1 JesusChrist69 13 2 62MB 196

            players_mode_sumo

            id name elo 1 JesusChrist69 196

            players_mode_boxing

            id name elo 1 62MB 723

            Does anyone know how to make that work? I am struggling on that problem for quite some time. All I was able to do was get global elo of one specific player but what I need is to get top 10 players. Thanks in advance for answers.

            ...

            ANSWER

            Answered 2022-Mar-21 at 18:35
            SELECT `name`, SUM(elo) AS elo FROM
            (SELECT `name`, `elo` FROM players_mode_boxing
            UNION
            SELECT `name`, `elo` FROM players_mode_sumo
            UNION
            SELECT `name`, `elo` FROM players_mode_thebridges) X
            GROUP BY `name`
            ORDER BY `elo` DESC LIMIT 10
            

            Source https://stackoverflow.com/questions/71561784

            QUESTION

            Service timed out: Spreadsheets
            Asked 2022-Feb-10 at 05:22

            I always get the exception: "Exception: Service timed out: Spreadsheets" Why does this happen and would it help to try the method updateSpec(spec)? It always happens when I got to this specific line:

            ...

            ANSWER

            Answered 2022-Feb-10 at 05:22

            The cause of the error is that you are calling sheet too many times, and each call is a request which takes time to process and ultimately leads to the timeout. The easy sounding solution is reduce the calls of sheet.getRange() and sheet.setValue() and sheet.getName() etc… so that you ideally do them once per each sheet you are working on. A simple example would be as follows, where everything is done once (except the api call, which ideally should also be done using a bulk api).

            Source https://stackoverflow.com/questions/71047139

            QUESTION

            Using SQLAlchemy, I need to assign users into pools, and a ranking for each pool they're in
            Asked 2022-Jan-28 at 12:55

            Here is the relevant code.

            I'm writing a Flask application where users can join pools and compete against others within those pools (currently, pools and users are in a many to many relationship). Each user will need a rating for each pool that he/she is in (Elo Rating), and I'm not sure how to implement that into my existing structure. Any suggestions to implement it that either fit into my solution or change it would be appreciated.

            (Right now, each user has a rating but it is shared amongst pools, which does not make sense for Elo)

            ...

            ANSWER

            Answered 2022-Jan-28 at 12:55

            For me, you should replace association table (pool_user) with association model (UserPool).

            Source https://stackoverflow.com/questions/70887197

            QUESTION

            How to maintain order of a Mongo collection by sorting on an indexed field efficiently
            Asked 2022-Jan-10 at 09:50
            ObjectId _id  <--- index
            String UserName
            int Points <--- Descending index
            
            ...

            ANSWER

            Answered 2022-Jan-10 at 09:50

            You don't need to sort additionally already created indices , when you create indices in mongoDB you specify in what direction they need to be sorted(ascending(1) or descending(-1)) , so when you search multiple documents based on some field the result will be already sorted based on this field index order. Afcourse you can specify explicitly if you need the result in reverse order or sorted by other field.

            Source https://stackoverflow.com/questions/70648893

            QUESTION

            JSON serialization of dictionary with complex objects
            Asked 2022-Jan-08 at 12:16

            I am trying to serialize the dictionary playersElo for saving/loading it as/from JSON.

            But as it's not a serializable object and I can't find a way to do it.

            ...

            ANSWER

            Answered 2022-Jan-08 at 12:16

            Maybe this can be a starting spot for you. The serializer grabs the __dict__ attribute from the object and makes a new dict-of-dicts, then writes it to JSON. The deserializer creates a dummy object, then updates the __dict__ on the way in.

            Source https://stackoverflow.com/questions/70525815

            QUESTION

            Firebase - One transaction for 2 paths in real time database
            Asked 2021-Dec-22 at 15:03

            I have a database with the following structure:

            Now two paintings can be rated against each other and the rating is then updated. But it can happen that one painting is rated mutliple times at the same time. Therefore i tried using a nested transaction (see below) to avoid race conditions:

            ...

            ANSWER

            Answered 2021-Dec-22 at 15:03

            Firebase Realtime Database transactions run against a single path in your database. There is currently no way to run a transaction against multiple path, so the common approach is to run the transaction against the lowest-level shared path (/paintings in your case).

            This can indeed lead to more contention as you have more users performing concurrent transactions.

            The only alternative I've used at times is to build my own transaction mechanism using:

            1. Multi-path updates, to perform both writes at the same time.
            2. Security rules, to only allow the transition that make sense in my use-case.
            3. Client-side retries, so that contention or outdated data are still handled correctly.

            This is fairly non-trivial even for simple cases, and may require changing your data structure and/or adding additional values to each request. But if you get past those hurdles, it will allow you to run a "transaction" across multiple paths.

            Source https://stackoverflow.com/questions/70448545

            QUESTION

            Console output into html file every X seconds
            Asked 2021-Nov-04 at 08:56

            I have this code in which results get printed in console, and I want to output them into a .html file:

            ...

            ANSWER

            Answered 2021-Nov-04 at 08:56

            Do you just mean print it to the html page that you are looking at?

            You can just put a div on the page where you are running this

            "

            and then

            Source https://stackoverflow.com/questions/69835691

            QUESTION

            error getting was unix with os.path.getatime
            Asked 2021-Oct-08 at 17:08

            I want to get the unix era of the file, but I get an error.

            Code:

            ...

            ANSWER

            Answered 2021-Oct-08 at 04:05

            "FileNotFoundError" is the give-away. That means that the file you pass to getatime cannot be found. file is returned by os.walk, so you can be pretty sure it does actually exist, so why can't it be found? Because you need to provide the path to the file, and os.walk only returns the filename.

            Try this instead:

            Source https://stackoverflow.com/questions/69490284

            QUESTION

            Angular - How to debounce PipeTransform?
            Asked 2021-Sep-29 at 19:25

            I am using *ngFor to display a collection, I also have one input which will be used as a filter criteria (this input is a formControl). Now I have added a PipeTransform to filter my collection based on that input. Everything works as expected but I can't figure out how to debounce. I want my filterPipe to be called 0.5s after last keystroke inside input but at the moment it is called instantly after any change inside my input.

            HTML:

            ...

            ANSWER

            Answered 2021-Sep-29 at 19:09

            Community Discussions, Code Snippets contain sources that include Stack Exchange Network

            Vulnerabilities

            No vulnerabilities reported

            Install elo

            You can download it from GitHub.
            On a UNIX-like operating system, using your system’s package manager is easiest. However, the packaged Ruby version may not be the newest one. There is also an installer for Windows. Managers help you to switch between multiple Ruby versions on your system. Installers can be used to install a specific or multiple Ruby versions. Please refer ruby-lang.org for more information.

            Support

            For any new features, suggestions and bugs create an issue on GitHub. If you have any questions check and ask questions on community page Stack Overflow .
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