code: def set_mean(self, col, row, mean):
          
          javabridge.call(self.jobject, "setMean", "(IID)V", col, row, mean)
docs: Sets the mean at this location (if valid location).
  
          :param col: the 0-based column index
          :type col: int
          :param row: the 0-based row index
          :type row: int
          :param mean: the mean to set
          :type mean: float