Richardson as Chairman, prepared the report Time Series Charts. It is a subcommittee of the Committee on Standards for Graphic Presentation. Within the next year, it is expected there will be a report by the subcommittee on Engineering and Scientific Graphs, of which W. A. Shewhart is Chairman.

GRAPHIC PRESENTATION

DESIGNATION OF CHART COMPONENTS

GENERAL NOTE

REFERENCE SYMBOL

HORIZONTAL RULINGS

LABELS

(curve

captions)

AMOUNT- SCALE NUMERALS

AMOUNT- SCALE PTION

/Vye of Paper

REFERENCE NOTE

BASE LINE (ZERO LINE)

TIME DESIGNATIONS

The arrow and designation "Edge of Paper" have been added to the original in order to indicate that the outside hne is not a frame. The author beheves it is undesirable to put a frame hne around a chart because of the possibihty of that hne being falsely interpreted as a zero line.

STANDARDS FOR TIME SERIES CHARTS

GRIDS

Grid Structure ploys a controlling port in interpreting the facts. However, grid specifications should seldom if ever be determined without tokmg the scales into consideration. In the matter of influencing the behavior of the curve, the two are of equal importance.

The proper construction of a grid involves more than simply covering a convenient space with cross rulings. As in the matter of general layout, the nature of the doto ond purpose of the presentation must be considered. A grid unsuifed to the doto moy be not only lacking in effectiveness but may actually be misleading. . Grids should be so proportioned as not to distort the facts.