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Actual figures for points of speclol Interest

Note: In chart prepcrotion It must be borr>e in mind that many people ot% noi fully "grophic minded" end would prefer the focts in tobular form. Moreover, there ore many occasions when supplementary figures will improve the value of o chart for everyone; and often the effectiveness of the presentation itself can be enhanced by the proper use of figures.

Principles

1. When figures are added, they should make some definite contribution such as --

(a) To provide the actual figures for the values shown in the chart, (bl To provide data supplementing the values shown in graphic form.

(c) To give actual figures for points of interest in the chart

(d) To emphasize amounts and differences shown on th6 chart.

2. The inclusion of figures on a chart should be done in conformity with the accepted principles of preferred practice in tabular presentation.

Procedure

INCLUSION OF SUPPORTING OR SUPPLEMENTARY DATA. A common method of including supporting data is to place the figures in the form of a table above or below the grid opposite the vertical rulings, reading upward as shown in the chart at the top of the page. This method has the advantage of closely relating figures to the plotted points.

TABULAR INSERTS. Supplementary or supporting data can often be shown as a tabular insert placed within the grid where adequate space is available. This procedure is particularly good where it is desired to include figures but at the same time subordinate them to the graphic picture.