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Population Pyramid

✓ Published0🌍 Public
Mmbostock
Last edited Feb 22, 2020
Created on Nov 12, 2012

This visualization shows the changing distribution of the U.S. population by age and sex from 1850 to 2000, using a population pyramid where blue bars represent males and pink bars represent females. Interactive arrow keys animate the display through decennial census years. The code uses D3 v3 with SVG rendering, employing `d3.svg.axis`, `d3.nest`, and `transition.attr` to slide bars by birth year and update heights. Data comes from the Minnesota Population Center.

AI-generated description

This diagram shows the distribution of age groups in the United States over the last 150 years. Use the arrow keys to observe the changing population. Data from the Minnesota Population Center. Use the arrow keys to change the displayed year. The blue bars are the male population for each five-year age bracket, while the pink bars are the female population; the bars are partially transparent so that you can see how they overlap, unlike the traditional side-by-side display which makes it difficult to compare the relative distribution of the sexes.

gpl-3.0 Licensed

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