{"version":"1.0","type":"rich","title":"Activity 6","description":"This example demonstrates a stacked bar chart that visualizes how three categorical data fields (AM, AZ, FD) contribute to a total for each of five discrete IDs. The chart uses D3.js v7 and SVG rendering, with d3.stack() to process the data into layers, d3.scaleBand() for the x-axis, and d3.scaleLinear() for the y-axis. The bars are colored using d3.schemeCategory10 and drawn with semi-transparent rectangles.","provider_name":"VizHub AI Studio","provider_url":"https://vizhub.com","html":"<iframe src=\"https://vizhub.com/viz/f382d802cec044949229020fbeb539ff?mode=embed\" width=\"960\" height=\"500\" scrolling=\"no\" frameborder=\"0\"></iframe>","width":960,"height":500,"cache_age":3600}