Follow the same flowers across several measurements

Try this

Select versicolor, then brush petal length; the sepal plot and table should retain the identical flower IDs.
Alt-click a scatter point to inspect its original four measurements.
Clear the species chart while preserving the length brush and compare overlap with other species.

Limits

The classic sample has a deliberately limited species population and is not a survey of all irises. The scikit-learn corrected variant is preserved. Visual separation is not an evaluated classifier accuracy.