This example displays the Iris dataset as a scatter plot, with petal width on the x-axis and sepal length on the y-axis, with each species colored distinctly (green, pink, blue). Using D3 version 6.7.0, it dynamically re-renders the plot by cycling through different data columns as the x-axis variable, showing how the same points reposition along the axes. The visualization uses D3’s `scaleLinear`, `axisLeft`, and `axisBottom` to draw the plot, with SVG circles for data marks and a black background for high contrast.