@Override public String toString(){
  String s="KDE(mean=[";
  double[] means=getMean();
  for (  double mean : means) {
    s+=StringUtils.getShortForm(mean) + ", ";
  }
  s=s.substring(0,s.length() - 2) + "]),std=";
  double avgstd=0.0;
  for (  double std : getStandardDeviations()) {
    avgstd+=std;
  }
  s+=StringUtils.getShortForm((avgstd / means.length));
  s+=") with " + points.length + " kernels ";
  return s;
}

@ Override public String toString ( ) { String s = "KDE(mean=[" ; double [ ] means = getMean ( ) ; for ( double mean : means ) { s += StringUtils . getShortForm ( mean ) + ", " ; } s = s . substring ( 0 , s . length ( ) - 2 ) + "]),std=" ; double avgstd = 0.0 ; for ( double std : getStandardDeviations ( ) ) { avgstd += std ; } s += StringUtils . getShortForm ( ( avgstd / means . length ) ) ; s += ") with " + points . length + " kernels " ; return s ; }
return a pretty print for the kernel density
