int countNonNull=0;
CSVFileWriter out = new CSVFileWriter("clusteringDistancesCSV.csv", ',');
Vector<String> headers = new Vector<String>();
headers.add("Euclidean");
headers.add("Manhattan");
out.writeFields(headers);
CSVFileReader in1 = new CSVFileReader("csv_out.csv", ',');
// skip the headers
Vector<String> fields1 = in1.readFields();
fields1 = in1.readFields();