This interactive bar chart displays mean measurements of three iris species, with a dropdown menu to select which measurement appears on the x-axis while the y-axis shows species categories. The visualization uses D3’s `scaleLinear` for the x-axis and `scaleBand` for the y-axis, with React managing state for the selected attribute. Data loads from a CSV file via d3.csv, and bars are rendered as SVG rectangles. The interface updates the x-axis label and bar widths dynamically when users change the selected measurement.