How to use

ssTotal

method

in

org.canova.api.util.MathUtils

/**
 * Returns the correlation coefficient of two double vectors.
 *
 * @param residuals       residuals
 * @param targetAttribute target attribute vector
 * @return the correlation coefficient or r
 */
public static double correlation(double[] residuals, double targetAttribute[]) {
 double[] predictedValues = new double[residuals.length];
 for (int i = 0; i < predictedValues.length; i++) {
  predictedValues[i] = targetAttribute[i] - residuals[i];
 }
 double ssErr = ssError(predictedValues, targetAttribute);
 double total = ssTotal(residuals, targetAttribute);
 return 1 - (ssErr / total);
}//end correlation

/**
 * Returns the correlation coefficient of two double vectors.
 *
 * @param residuals residuals
 * @param targetAttribute target attribute vector
 *
 * @return the correlation coefficient or r
 */
public static  double correlation(double[] residuals,double targetAttribute[]) {
  double[] predictedValues = new double[residuals.length];
  for(int i=0;i<predictedValues.length;i++) {
    predictedValues[i]=targetAttribute[i] - residuals[i];
  }
  double ssErr=ssError(predictedValues,targetAttribute);
  double total=ssTotal(residuals,targetAttribute);
  return 1-(ssErr/total);
}//end correlation
/**