Relative Rents for a 4-Person Manual Worker's Family in Each of 59 Cities in the United States, March, 1935.

1. The 100% line here gives a good measuring rod for comparisons.

2. The chart would be read as follows: the four cities, Detroit, Michigan, Fall River, Massachusetts, Memphis, Tennessee, and Tucson, Arizona, may be described as average cities so far as rent for a 4-person manual worker's family is concerned. Rents are relatively much higher in Washington, D. C, and New York City, and relatively much lower in Mobile, Alabama, and Portland, Oregon.

MULTIPLE BAR CHARTS

Abstracts from Time Series Charts. A Manual of Design and Construction. 1938, prepared by Committee on Standards for Graphic Presentation, under procedure of American Standards Association, with The American Society of Mechanical Engineers as sponsor body.

TIMC-SniES CCXUAAN CHAHn

A. DCFINITION Column choti art graphic prnaniotions wh«r*in fHiffl«ncol values or* r«pr«j«nt9d by lh« length ol vertical bars or caluemt.

6. THE COIUMN CHART IS PART1CULA81Y EFFECTIVE,

I. To emphobie comparisons ol amounts in o single time series.

2 For popular presentation.

3 To show components lor o rekjtivelv few lolols.

4 To picture "penod' doto as ogomst "point" doNi.

5 For s>iowir^ o rar>ge of volues or deviations from a normal or bogey.

C THE COIUMN CHART IS NOT THE BEST FORM:

1. For comporing several times senes

2. For lime series over an eilended period with many plottings

1. LAYOUT AND DESIGN A chon consisting of o few columns should generoify be higher than wide, for more than a few columns a widerthon-high chort is preferoble