code: public void processSpace(Properties properties) {
          try {
              MatrixFile processedSpace = processSpace(
                      new TfIdfTransform());
              wordSpace = MatrixIO.readMatrix(
                      processedSpace.getFile(), processedSpace.getFormat());
          } catch (IOException ioe) {
              throw new IOError(ioe);
          }
      }
docs: {@inheritDoc}