public DynamicTimeSeriesCollection(int nSeries,int nMoments){
  this(nSeries,nMoments,new Millisecond(),TimeZone.getDefault());
  this.newestAt=nMoments - 1;
}

public DynamicTimeSeriesCollection ( int nSeries , int nMoments ) { this ( nSeries , nMoments , new Millisecond ( ) , TimeZone . getDefault ( ) ) ; this . newestAt = nMoments - 1 ; }
constructs a dataset with capacity for n series , tied to default timezone .
