Looking at the previous plots, I see that my leaflet diagram of the initial training/test split is off. 😢
I think it might help to add a mileage scale on the plots to see how close/far they are. Unfortunately, leaflet doesn't scale the points when you zoom, so they look huge and close together.
Originally posted by @topepo in #94 (comment)
The plot (https://aml4td.org/chapters/initial-data-splitting.html#fig-forested-split) should show hexegonal clusters.