code: public static DataSet<?> load(InputStream inRaw) throws IOException
      {
          return load(inRaw, DataStore.DEFAULT_STORE.emptyClone());
      }
docs: This loads a JSAT dataset from an input stream, and will not do any of
  its own buffering. The DataSet will be returned as either a
  {@link SimpleDataSet}, {@link ClassificationDataSet}, or
  {@link RegressionDataSet} depending on what type of dataset was
  originally written out.<br>
  
  @param inRaw the input stream, caller should buffer it
  @return a dataset
  @throws IOException