agentvariants.java

这是个java版的人工模拟股市。

package asm;

/**
 * Title:        Artificial Stock Market
 * Description:  人工模拟股市（来源：SFI的Swarm版本）的Java版本
 * Copyright:    Copyright (c) 2003
 * Company:      http://agents.yeah.net
 * @author jake
 * @version 1.0
 */

public class AgentVariants {
  public double demand;	/*" bid or -offer"*/
  public double profit;	/*" exp-weighted moving average "*/
  public double wealth;	/*" total agent wealth "*/
  public double position;	/*" total shares of stock "*/
  public double cash;	        /*" total agent cash position "*/
  public int currentTime; /*"The agent regularly checks with Swarm to see what time it is"*/
  public double avspecificity; /*'average specificity of active forecasts"*/
  public double forecast;       /*"prediction of stock price: (trialprice+dividend)*pdcoeff + offset."*/
  public double global_mean; /*"price+dividend"*/
  public double realDeviation;  /*" ftarget-lforecast: how far off was the agent's forecast?"*/
  public double variance;   /*"an Exp.Weighted MA of the agent's historical variance: Combine the old variance with deviation^squared, as in:  bv*variance + av*deviation*deviation"*/
  public double pdcoeff;   /*" coefficient used in predicting stock price, recalculated each period in prepareForTrading"*/
  public double offset;    /*" coefficient used in predicting stock price, recalculated each period in prepareForTrading"*/
  public double divisor;   /*" a coefficient used to calculate demand for stock. It is a proportion (lambda) of forecastvar (basically, accuracy of forecasts)"*/
  public int gacount;
  public AgentVariants() {
  }
}