Fork D3 Tarea
This animated population pyramid uses D3 v7 to display demographic data from a CSV file across birth cohorts and years. The visualization shows population counts by age and gender, with bars representing different birth years that slide horizontally as the displayed year changes via arrow key navigation. The code employs d3.scale.linear, d3.nest for data aggregation, and transition methods with duration to animate the bar heights and container position smoothly between years.