Downloads

              

Supporting programs and documentation are available from ftp.rathingtheory.com by means of an FTP client, such as the free download at www.coreftp.com.  Anonymous FTP is not supported.  Enter the user name "downloads@ratingtheory.com" and the password "Back2Basics".  The folders presented there contain files relevant to the corresponding sections.  The Visual Basic files (.vb) show program structures but will not run on their own.   

A Revised Elo System contains a module for a Visual Basic console program used to generate the values of Table 10: "Rating Changes Produced by a Win for Various Rating Differences"

Consistency contains live Microsoft Excel programs in two versions, one for Excel 2007 with extension .xlsx and a second for earlier releases with extension .xls.  The Excel program CrossTable2007 shows the convergence of linear ratings by iterative calculations.  The Excel program Champs2008 shows the convergence of Berkin ratings.  The files Blank and HalfTable are for experiments with linear ratings.  The latter provides automatic entry of opposition scores.  The text file ReadMe gives instructions for operating the demonstration programs by the default manual calculations.  The text file Entering Data gives hints for input.

Ordinal Ratings
  contains two modules for a Visual Basic console program.  It compares the minimizing of violations by two algorithms:  (1) sorting by directed rank difference and (2) brute force.

Ordinal Ratings 2 contains the Excel program Mannheim1914, which addresses the controversy over the performance of Alekhine vs. Vidmar in that tournament.

Ordinal Ratings 3 contains a module for a Visual Basic console program that calculates sequential ordinal ratings for a hypothetical playing field and shows the resulting correlations, which are depicted in the graph "Correlation of Calculated Ranks with Predefined Ranks by Spearman's Rank Correlation Coefficient."

Probability in Rating Systems contains a VB module for generating the values depicted in the graph "Score Probabilities for Ten Games." 

Sequential vs. Simultaneous Ratings contains a VB module for generating the values of the graph "Effect of Half Rating Changes."