The graph feature allows you to graph several values: weight, calories, fat, carbohydrates, protein. The buttons under the graph select which value is to be graphed.
The three buttons on the lower right side select whether to display a year, three months, or one month of data. Data is displayed previous to the currently selected day, which may be selected using the yellow left/right arrows. (As always, holding down option while clicking on an arrow moves by a week, holding down command moves by a month)
