{"version":"1.0","type":"rich","title":"Fork of Brush, Trendline, Legend, Title, Linechart, Barchart","description":"This fork of a D3.js example combines a line chart of EPA groundwater monitoring levels with a bar chart of effective rainfall for the Bog of the Ring. A brushed time-series chart filters both views synchronously, and a dashed trendline with its equation updates based on the selected date range. The code uses `d3.brushX`, `d3.scaleTime`, `d3.axisBottom`, and `d3.nest` to build the SVG rendering, with `d3.csv` loading the two datasets. A color legend distinguishes the observation wells and rainfall series.","provider_name":"VizHub AI Studio","provider_url":"https://vizhub.com","html":"<iframe src=\"https://vizhub.com/viz/81fe02f6a3de4466978adbd5e66efed7?mode=embed\" width=\"960\" height=\"500\" scrolling=\"no\" frameborder=\"0\"></iframe>","width":960,"height":500,"cache_age":3600}