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glicko2 | Java implementation of the Glicko-2 rating algorithm

 by   goochjs Java Version: Current License: BSD-2-Clause

 by   goochjs Java Version: Current License: BSD-2-Clause

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kandi X-RAY | glicko2 Summary

glicko2 is a Java library. glicko2 has no bugs, it has no vulnerabilities, it has build file available, it has a Permissive License and it has low support. You can download it from GitHub.
osgi-compatible java implementation of the [glicko-2 rating algorithm](http://www.glicko.net/glicko/glicko2.pdf "example of the glicko-2 system"). to use: * instantiate a ratingcalculator object * at instantiation, you can set the default rating for a player’s volatility and the system constant for your game ("τ", which constrains changes in volatility over time) or just accept the defaults * instantiate a rating object for each player * instantiate a ratingperiodresults object * add game results to the ratingperiodresults object until you reach the end of your rating period * use addresult(winner, loser) for games that had an outcome * use adddraw(player1, player2) for games that resulted in a draw *
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Quality
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kandi-support Support

  • glicko2 has a low active ecosystem.
  • It has 29 star(s) with 11 fork(s). There are 5 watchers for this library.
  • It had no major release in the last 12 months.
  • There are 3 open issues and 0 have been closed. On average issues are closed in 866 days. There are no pull requests.
  • It has a neutral sentiment in the developer community.
  • The latest version of glicko2 is current.
glicko2 Support
Best in #Java
Average in #Java
glicko2 Support
Best in #Java
Average in #Java

quality kandi Quality

  • glicko2 has 0 bugs and 0 code smells.
glicko2 Quality
Best in #Java
Average in #Java
glicko2 Quality
Best in #Java
Average in #Java

securitySecurity

  • glicko2 has no vulnerabilities reported, and its dependent libraries have no vulnerabilities reported.
  • glicko2 code analysis shows 0 unresolved vulnerabilities.
  • There are 0 security hotspots that need review.
glicko2 Security
Best in #Java
Average in #Java
glicko2 Security
Best in #Java
Average in #Java

license License

  • glicko2 is licensed under the BSD-2-Clause License. This license is Permissive.
  • Permissive licenses have the least restrictions, and you can use them in most projects.
glicko2 License
Best in #Java
Average in #Java
glicko2 License
Best in #Java
Average in #Java

buildReuse

  • glicko2 releases are not available. You will need to build from source code and install.
  • Build file is available. You can build the component from source.
glicko2 Reuse
Best in #Java
Average in #Java
glicko2 Reuse
Best in #Java
Average in #Java
Top functions reviewed by kandi - BETA

kandi has reviewed glicko2 and discovered the below as its top functions. This is intended to give you an instant insight into glicko2 implemented functionality, and help decide if they suit your requirements.

  • Calculates the new rating for a new player .
    • Calculates the new ratings for all the participants in the specified ratings .
      • Returns the score of a player
        • Calculates the rating of a player
          • Returns the opposite rating .
            • Filters results which are participating in the specified player .
              • Get the participants of all participants that have been played .
                • Finalise the statistics .
                  • Returns a string representation of the model .
                    • Checks if two players are equal .

                      Get all kandi verified functions for this library.

                      Get all kandi verified functions for this library.

                      glicko2 Key Features

                      Java implementation of the Glicko-2 rating algorithm

                      Access violation writing location dynamically allocated array

                      copy iconCopydownload iconDownload
                      1    std::string currLine;
                      2    std::string *posResponsesTeamNames = new std::string[league::numTeams];
                      3    std::string posResponsesWon[3] = { "1","2","3" };
                      4    team* team1;
                      5    team* team2;
                      6    bool successful = false;
                      7    for (int i = 0; i < league::numTeams; i++) {
                      8         std::string teamName = league::getName(i + 1);
                      9         for (i = 0; i < teamName.size(); i++) {
                      10             teamName.at(i) = toupper(teamName.at(i));
                      11        }
                      12       posResponsesTeamNames[i] = teamName;   
                      13    }
                      

                      Community Discussions

                      Trending Discussions on glicko2
                      • Access violation writing location dynamically allocated array
                      Trending Discussions on glicko2

                      QUESTION

                      Access violation writing location dynamically allocated array

                      Asked 2020-Apr-23 at 05:09

                      I am writing a piece of code. As part of this code I have decided to use a dynamically allocated array to store a set of strings. However when i try and assign a value to my array i get the exception

                      Exception thrown at 0x50D540C9 (vcruntime140d.dll) in Glicko2.exe: 0xC0000005: Access violation writing location 0xC39903E3.
                      

                      From researching this topic it seems that this exception mainly appears if you try and write to outside of your array. However inside the for loop where i am writing it, it should be impossible to write outside of it. The exception happens at the line

                               posResponsesTeamNames[i] = teamName;   
                      

                      and my code is

                      int league::matchSet()
                      {
                          std::string currLine;
                          std::string *posResponsesTeamNames = new std::string[league::numTeams];
                          std::string posResponsesWon[3] = { "1","2","3" };
                          team* team1;
                          team* team2;
                          bool successful = false;
                          for (int i = 0; i < league::numTeams; i++) {
                               std::string teamName = league::getName(i + 1);
                               for (i = 0; i < teamName.size(); i++) {
                                   teamName.at(i) = toupper(teamName.at(i));
                               }
                               posResponsesTeamNames[i] = teamName;   
                          }
                          std::cout << posResponsesTeamNames[1];
                      roundStart:
                          for (int i = 0; i < league::numMatches; i++) {
                              std::cout << "for match " << i + 1 << " please enter name of first team to play: ";
                              std::getline(std::cin, currLine);
                              int parsed = parseText(currLine, posResponsesTeamNames);
                              if (parsed == 2) {
                                  delete[] posResponsesTeamNames;
                                  prepForEnd();
                                  return 2;
                              }
                              else if (parsed == 0) {
                                  goto roundStart;
                              }
                              for (int i = 0; i < league::teams.size(); i++) {
                                  if (currLine == league::teams.at(i).getName()) {
                                      successful = true;
                                      team1 = &league::teams.at(i);
                                  }
                              }
                              if (successful == false) {
                                  std::cout << "ERROR: Invalid team name entered";
                                  goto roundStart;
                              }
                      secondTeam:
                              std::cout << "for match " << i + 1 << " please enter name of second team to play: ";
                              std::getline(std::cin, currLine);
                              parsed = parseText(currLine, posResponsesTeamNames);
                              if (parsed == 2) {
                                  delete[] posResponsesTeamNames;
                                  prepForEnd();
                                  return 2;
                              }
                              else if (parsed == 0) {
                                  goto secondTeam;
                              }
                              for (int i = 0; i < league::teams.size(); i++) {
                                  if (currLine == league::teams.at(i).getName()) {
                                      successful = true;
                                      team2 = &league::teams.at(i);
                                  }
                              }
                              if (successful == false) {
                                  std::cout << "ERROR: Invalid team name entered";
                                  goto secondTeam;
                              }
                      whoWon:
                              std::cout << "please enter 1 if the first team won, 2 if the second team won or 3 if it was a draw: ";
                              std::getline(std::cin, currLine);
                              parsed = parseText(currLine, posResponsesWon);
                              if (parsed == 2) {
                                  delete[] posResponsesTeamNames;
                                  prepForEnd();
                                  return 2;
                              }
                              if (parsed == 0) goto whoWon;
                          }
                          delete[] posResponsesTeamNames;
                      }
                      

                      ANSWER

                      Answered 2020-Apr-23 at 04:39

                      When you call the ‘new’ keyword, that is calling your constructor of your class. If your constrictor is instantiating your newly allocated object to null and then, while in your loop you’re de-referencing that object, that has a tendency to create access violations. If your constrictor is initializing your objects in a way that allows for immediate de-referencing (initialize to empty string “”) that may allow for you to write to that ‘new’ object without access violation.

                      Source https://stackoverflow.com/questions/61379193

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

                      Vulnerabilities

                      No vulnerabilities reported

                      Install glicko2

                      You can download it from GitHub.
                      You can use glicko2 like any standard Java library. Please include the the jar files in your classpath. You can also use any IDE and you can run and debug the glicko2 component as you would do with any other Java program. Best practice is to use a build tool that supports dependency management such as Maven or Gradle. For Maven installation, please refer maven.apache.org. For Gradle installation, please refer gradle.org .

                      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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