public TimeTableXYDataset(TimeZone zone,Locale locale){
  ParamChecks.nullNotPermitted(zone,"zone");
  ParamChecks.nullNotPermitted(locale,"locale");
  this.values=new DefaultKeyedValues2D(true);
  this.workingCalendar=Calendar.getInstance(zone,locale);
  this.xPosition=TimePeriodAnchor.START;
}

public TimeTableXYDataset ( TimeZone zone , Locale locale ) { ParamChecks . nullNotPermitted ( zone , "zone" ) ; ParamChecks . nullNotPermitted ( locale , "locale" ) ; this . values = new DefaultKeyedValues2D ( true ) ; this . workingCalendar = Calendar . getInstance ( zone , locale ) ; this . xPosition = TimePeriodAnchor . START ; }
creates a new dataset with the given time zone and locale .
