private static String join(double[] seriesData, String separator) {

    // two or more elements
    StringBuilder sb = new StringBuilder(256); // Java default is 16, probably too small
    sb.append(seriesData[0]);
    for (int i = 1; i < seriesData.length; i++) {

      if (separator != null) {
        sb.append(separator);
      }

      sb.append(seriesData[i]);
    }
    return sb.toString();
  }
private static String join ( double [ ] seriesData , String separator ) { StringBuilder sb = new StringBuilder ( 256 ) ; sb . append ( seriesData [ 0 ] ) ; for ( int i = 1 ; i < seriesData . length ; i ++ ) { if ( separator != null ) { sb . append ( separator ) ; } sb . append ( seriesData [ i ] ) ; } return sb . toString ( ) ; }
Joins a series into an entire row of comma separated values.

@param seriesData
@param separator
@return