This example shows a week of temperature readings in San Francisco, plotted as a smooth, curving line chart against time. The visualization uses D3.js (v6) with SVG rendering, employing `scaleTime` and `scaleLinear` to map the data, and `line` with `curveBasis` to create the smoothed path. The chart includes labeled axes, grid lines, and a title, with data loaded from a CSV hosted on vizhub.com.