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taroyabuki/bug_in_findclusters.m

Last active December 12, 2015 09:09
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Bug in FindClusters of Mathematica 8.0.4, 9.0.0, and 9.0.1.
Raw
bug_in_findclusters.m
data = Import["https://gist.github.com/taroyabuki/4749183/raw/ffc84dbc4a3499ddef4a8c4f689b56c2948225bd/clustering_test_data.csv"];
(* This returns no result *)
FindClusters[data, DistanceFunction -> CosineDistance,
Method -> {"Agglomerate", "Linkage" -> "Complete"}]
(* Shuffled data can be clustered. *)
FindClusters[RandomSample@data, DistanceFunction -> CosineDistance,
Method -> {"Agglomerate", "Linkage" -> "Complete"}]
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