A running plan line chart
A running plan line chart traces the distance of Sunday runs leading up to the Rio Half Marathon, using a dataset of timestamps and kilometer values. The visualization is rendered as an SVG via D3 v5, with a time-scaled x-axis and linear y-axis. It employs `scaleTime`, `scaleLinear`, `axisBottom`, and `axisLeft` from the D3 API, plus a custom line path styled with a red stroke. The chart includes rotated date labels and a title, sourced from a CSV file loaded with `csv()`.