Meeting 6: November 25th 2018 - QMIND-Team/Sabermetrics GitHub Wiki

Agenda

• Updates on last week's tasks

  • team pitching roster
  • merge
  • fill nulls
  • drop nulls
  • count nulls
  • median and mean

• Workflow update

  • Always be changing existing files rather than creating new ones

• Data cleaning update

  • leave data cleaning tasks until they are actually necessary

• Refactoring

  • Change to the directory system
  • Will's getter methods and the parameter dictionary

• Documentation

  • When you have spare time, try and document all functions you have created within the wiki

• Context

  • How to predict wins
  • Player and team rating vs. predicting runs scored and runs against
  • Models: Marcel, Pecota, Steamer, Zips, Average
  • Rating Systems: Elo, Trueskill

• Marcel model

  • Look at the performance of the player over the last three years, giving more weight to the most recent seasons.
  • Regress the player’s performance toward the league mean, based on the number of plate appearances or innings pitched. The more data, the less you regress.
  • Apply an age adjustment.

• Tasks

  • Finish anything from the past week
  • Test cases
  • Stay off the code base tonight
  • Documentation
  • Weighted stats
  • League Averages
  • Marcel Projection
  • Validation of Marcel