K-Means算法 mapreduce

代码说明：

public class KmeansMapper extends MapReduceBase implements   Mapper {  // one coodinate(data)  private List coordinate = new ArrayList();  private BasicKMeansTool basicKmeans = new BasicKMeansTool();  public void map(LongWritable key, Text value,    OutputCollector midoutput,    Reporter arg3) throws IOException {   // TODO Auto-generated method stub   String line = value.toString();   String[] dataList = line.split(",");   List distances = null;   StringTokenizer itr;   for (int i = 0; i < dataList.length; i++) {    itr = new StringTokenizer(dataList[i]);  &nbs