This interactive parallel coordinates plot, built with React and D3 v4, visualizes the Iris dataset across four user-selectable dimensions (sepal and petal length/width). Each of the 150 flower specimens is drawn as an SVG path, colored red, green, or blue by species (setosa, versicolor, virginica). Four dropdown menus and a "Go!" button allow reordering or replacing the axes, triggering a recomputation of the line geometry through `d3.line()` and `d3.scalePoint()` on the raw CSV data.