This example visualizes the daily temperature of a week in San Francisco using a time-series scatter plot, with points connected by a line to highlight trends. The chart uses D3 scales (`scaleTime`, `scaleLinear`) to map timestamps and temperature values to SVG coordinates, with React managing the rendering of axes and marks. The data is loaded via D3’s `csv` parser from a remote file, and each point includes a tooltip showing the day of the week via `timeFormat`.