Add a README file to build_model

Author: zeruniverse

build_model/README.md

@@ -0,0 +1,39 @@
+To build the tree for this model, you'll run BuildTree.java. You need to modify the database setting in the code according to your database configuration.  
+   
+To get the Q-values, you'll run FastValueIteration.java. Set dbname to the name of the sequence tree database, and dbname2 to the output database for the Q-values.
+  
+To get the player valuations, run GetPlayerValues.java. Set databaseData to the original dataset, databaseTree to the sequence tree database, databaseValueIteration to the database with the Q-values, and databasePlayerValues to the output database for the player valuations. Also, set metricTable to the table to get Q-values from.
+  
+Each row in the output table for GetPlayerValues contains the following:  
++ GameId  
++ EventNumber  
++ PlayerId  
++ FromNodeId  
++ ToNodeId  
++ Action  
++ ActionValue  
+  
+The main parts you need are GameId, PlayerId, and ActionValue.
+  
+To get Net Game Impact, run:
+  
+***CREATE TABLE Net_Game_Impact AS
+SELECT GameId, PlayerId, SUM( ActionValue ) AS Net_Game_Impact
+FROM <databasePlayerValues>.playervaluations
+GROUP BY GameId, PlayerId;***
+  
+To get Average Game Impact, run:
+  
+***CREATE TABLE Average_Game_Impact
+SELECT GameId, PlayerId, AVG( ActionValue ) AS Average_Game_Impact
+FROM <databasePlayerValues>.playervaluations
+GROUP BY GameId, PlayerId;***
+  
+To get the sum of averages over each season & season type, run:
+  
+***CREATE TABLE Season_Sum_Of_Average_Game_Impact
+SELECT A.Season, A.SeasonType, B.PlayerId, SUM( B.Average_Game_Impact ) AS Season_Sum_Of_Average_Game_Impact
+FROM <databaseData>.game AS A 
+JOIN Average_Game_Impact AS B
+ON A.GameId = B.GameId
+GROUP BY A.Season, A.SeasonType, B.PlayerId;***