code: public static SimpleDataSet loadSimple(InputStream inRaw, DataStore backingStore) throws IOException
      {
          return (SimpleDataSet) load(inRaw, true, backingStore);
      }
docs: Loads in a JSAT dataset as a {@link SimpleDataSet}. So long as the input
  stream is valid, this will not fail.
  
  @param inRaw the input stream, caller should buffer it
  @param backingStore the data store to put all data points in
  @return a SimpleDataSet object
  @throws IOException