Building Responsive Data Visualization for the Web by Bill Hinderman

Author:Bill Hinderman [Hinderman, Bill]
Language: eng
Format: epub, pdf
ISBN: 9781119067207
Published: 2016-10-06T00:00:00+00:00

Figure 6-10: A stacked area chart. Cumulated totals over time are shown.

Dorling Maps (Bubble Charts)

A Dorling Map, or bubble chart, if you want to sound less fancy, is a variation on the scatter plot. The bubble chart represents variables in multiple ways: the x,y coordinates of a bubble, the bubbles’ relative locations to one another, and each bubble’s size.

Additional information beyond these dimensions can be effectively shown in a bubble chart as well, either by shading of colors within one set of data, or coloring different sets of data in uniform fashion and comparing their relative distances or sizes from one another as in Figure 6-11. The value gained by a bubble chart is the amount of different dimensions that can be shown in a relatively simple visualization.

Although called a map, it has nothing to do with geographical information. The Dorling map below could represent the overlap in mutual friends between two users on Facebook. The colors represent who the individuals were friends with first, the size being the amount of overlapping friends those three have, and the distance from either axis being the frequency of posting on one another’s wall.

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