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For use in the example sentence:

After the outliers had been removed, the ... were grouped with a disjoint set (aka. Union-Find).

I lean towards inliers, but this seems wrong given the linked definition.

Any thoughts?

  • Norms? Standards? Remaining Xs? – Roger Sinasohn Aug 2 '18 at 18:45
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    The remaining elements were grouped. You do not give us enough information. Sets have members or elements, right? Perhaps you could be clearer. – Lambie Aug 2 '18 at 19:01
  • I think this should be migrated to Mathematics since you specifically want it for "statistics parlance". – Phil Sweet Aug 2 '18 at 23:12
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"... the remainder were grouped..."

You also might want to use cluster as a term for the grouping too.

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Sean,

TBQH, given that it is 2018 and statistical discussions are more commonplace (people were not discussing Gladwell or Piketty when they spoke Latin), a neologism such as inlier would be acceptable.

And interestingly enough, "inlier" may have been been in use for ~150 years. (see related entries)

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There is a good English word of Latin origin for what is left over after something has been removed: residuum. It has the advantage over 'inliers' of not implying that what is left is more true than the data you had to start with - a fact always to be borne in mind when one is tempted to censor one's data.

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    Except I'd be more inclined to refer to the outliers as the residua of the process. And decantant doesn't seem to be used the way the OP wants. – Phil Sweet Aug 2 '18 at 21:58
  • @PhilSweet Really! That sounds odd. Can you cite any references to that usage? – JeremyC Aug 2 '18 at 22:03
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    He has some existing (disjoint) set R. He is comparing his test set to R and R is absorbing qualifying elements and not absorbing the outliers. Metaphorically, the stuff remaining outside R is the residual. – Phil Sweet Aug 2 '18 at 22:42
  • While your average statistics reader may have a large vocabulary at their disposal, I think it will rarely extend to such obscure latin terms – Paul Childs Aug 2 '18 at 23:49

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