I am trying to store a couple numbers for each partition, in a subset of the partitions of my data set. Of course, one can accomplish this using a binary tree. (The first split is on inclusion/exclusion of the first object, and so on.) I can probably simulate a tree using vectors. (One vector gives the index of left child node, another the index of the right child node.) However, it seems like there must be a useful class associated with the clustering or recursive partitioning procedures, perhaps not out there for everyone to see. I poked around on the R page and didn't see anything that clearly met my needs very directly. I hope I would not have to learn recursive partitioning in R to find what I need.
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