This example presents an interactive scatter plot of the Iris dataset, where each flower species is represented by a distinct symbol from d3.symbol. The plot visualizes sepal length against petal width, with axes generated using d3.axisLeft and d3.axisBottom. A d3.scaleOrdinal maps species to symbol types, while d3.scaleLinear handles the x and y scales. Every 15 seconds, the x-axis dynamically switches between four numeric attributes—petal width, sepal width, petal length, and sepal length—using setInterval to re-render the chart with updated scales and positions.