package PCI.ASQ.pca;
import java.util.ArrayList;
import java.util.Iterator;
import java.util.List;

import PCI.ASQ.basic.RatioMatrix;

//这个函数用于求模糊概率集平均值采样主要成份分析
//思想：贝叶斯 模糊数学 统计于概率论
//实现：罗瑶光
//作者,著作权人： 罗瑶光，浏阳
public class PCAMeanOfFuzzPC{
  public static RatioMatrix getSimilarFuzzSetWithScale(RatioMatrix input, List<RatioMatrix> groups
      , double scale) {
    List<RatioMatrix> output= new ArrayList<>();
    Iterator<RatioMatrix> iterators= groups.iterator();
    while(iterators.hasNext()) {
      RatioMatrix ratio= iterators.next();
      double rightRightMean= ratio.getRightRightRatio();
      double rightErrorMean= ratio.getRightErrorRatio();
      double errorRightMean= ratio.getErrorRightRatio();
      double errorErrorMean= ratio.getErrorErrorRatio();
      double predictionRightRight= Math.abs(input.getRightRightRatio()- rightRightMean);
      double predictionRightError= Math.abs(input.getRightErrorRatio()- rightErrorMean);
      double predictionErrorRight= Math.abs(input.getErrorRightRatio()- errorRightMean);
      double predictionErrorError= Math.abs(input.getErrorErrorRatio()- errorErrorMean);
      double tempSumRight= predictionRightRight+ predictionRightError+ predictionErrorRight
          + predictionErrorError;
      if(tempSumRight< scale) {
        output.add(ratio);
      }
    }
    RatioMatrix outputMean= new RatioMatrix();
    Iterator<RatioMatrix> iteratorsOutput= output.iterator();
    while(iteratorsOutput.hasNext()) {
      RatioMatrix ratio= iteratorsOutput.next();
      outputMean.I_ErrorErrorRatio(ratio.getErrorErrorRatio()+ outputMean.getErrorErrorRatio());
      outputMean.I_ErrorRightRatio(ratio.getErrorRightRatio()+ outputMean.getErrorRightRatio());
      outputMean.I_RightErrorRatio(ratio.getRightErrorRatio()+ outputMean.getRightErrorRatio());
      outputMean.I_RightRightRatio(ratio.getRightRightRatio()+ outputMean.getRightRightRatio());
    }
    outputMean.I_ErrorErrorRatio(outputMean.getErrorErrorRatio()/ output.size());
    outputMean.I_ErrorRightRatio(outputMean.getErrorRightRatio()/ output.size());
    outputMean.I_RightErrorRatio(outputMean.getRightErrorRatio()/ output.size());
    outputMean.I_RightRightRatio(outputMean.getRightRightRatio()/ output.size());
    return outputMean;  
  }  
}