public char[] ts2String(double[] vals,double[] cuts){
  char[] res=new char[vals.length];
  for (int i=0; i < vals.length; i++) {
    res[i]=num2char(vals[i],cuts);
  }
  return res;
}

public char [ ] ts2String ( double [ ] vals , double [ ] cuts ) { char [ ] res = new char [ vals . length ] ; for ( int i = 0 ; i < vals . length ; i ++ ) { res [ i ] = num2char ( vals [ i ] , cuts ) ; } return res ; }
converts the timeseries into string using given cuts intervals . useful for not - normal distribution cuts .
