This example demonstrates a dynamic animation of fifteen circles moving in a sinusoidal wave pattern across the screen, with each circle’s vertical position updated continuously. The visualization uses the D3.js library (version 6.6.2), specifically leveraging the `select`, `range`, and `join` APIs to manage the SVG elements. The code generates data points calculated from a time variable, then updates the circles’ `cx` and `cy` attributes at a fixed 60-frame-per-second interval using `setInterval`. The rendering is SVG-based, with a live animation that replays the wave motion indefinitely.