code: def get_element(self, row, col, inst=None):
          
          if inst is None:
              return javabridge.call(
                  self.jobject, "getElement", "(II)D", row, col)
          else:
              return javabridge.call(
                  self.jobject, "getElement", "(IILweka/core/Instance;)D", row, col, inst.jobject)
docs: Returns the value at the specified location.
  
          :param row: the 0-based index of the row
          :type row: int
          :param col: the 0-based index of the column
          :type col: int
          :param inst: the Instace
          :type inst: Instance
          :return: the value in that cell
          :rtype: float