I am looking for the unit labels for the variables in the "Wine" benchmark set deposited on the UCI Machine Learning Repository?
I searched online and also looked through the reference but couldn't find anything. In certain cases it is not so hard to infer the units, e.g., "% ABV" for "alcohol" and "mg/L" for the "proline" content. But for some others this might be trickier.
Knowing those labels doesn't really matter in the application, however, it certainly looks more professional for presenting some data (e.g., decision boundaries/regions for benchmarking new classifiers etc.) and having the axes labeled correctly.
If someone has the correct labels, it would be also great if someone could submit them to the UCI repo for future reference.