Stacked Bar Chart
This stacked bar chart displays the population of U.S. states, broken down by seven age groups, with each state’s total population sorted in descending order. The visualization uses a horizontal axis for state abbreviations and a vertical axis for population counts, formatted with SI prefixes (e.g., “10M”). The chart is built with D3 v4, loading data from a CSV via `d3.csv`, computing stacked positions with `d3.stack`, and encoding the categorical age groups with a color scale (`d3.scaleOrdinal`). Axes are rendered using `d3.axisBottom` and `d3.axisLeft`, with a legend positioned inside the SVG.
AI-generated descriptionThis stacked bar chart is constructed from a CSV file storing the populations of different states by age group. The chart employs conventional margins and a number of D3 features:
- d3-dsv - load and parse data
- d3-scale - x- and y-position, and color encoding
- d3-format - SI prefix formatting (e.g., “10M” for 10,000,000)
- d3-array - compute simple statistics (e.g., max)
- d3-axis - display axes
- d3-shape - computed stacked positions
forked from <a href='http://bl.ocks.org/monkeycycle/'>monkeycycle</a>'s block: <a href='http://bl.ocks.org/monkeycycle/d60ee1118fc7f307bd5b1cc64193e67e'>Stacked Bar Chart</a>