1. A method for controlling an apparatus for drawing a graph, comprising: reading a plurality of scores from a memory which stores the plurality of scores of a plurality of objects, each of the plurality of scores of the plurality of objects corresponding to one item of a plurality of items and one object of the plurality of objects; comparing a difference between the scores corresponding to the one item; changing coordinates of the scores to not overlap in accordance with the scores of the objects of the one item compared and an item that is adjacent to the one item, when the difference between the scores corresponding to the one item is smaller than a predetermined value; and outputting the graph by plotting plot characters which represent the plurality of objects in accordance with the coordinates of the scores corresponding to the plurality of objects to a display or a printer.