I ran a clustering and in the resultant PCA score plot some observations getting in a line drew my attention (I marked them with a red line) . How come they distribute like that? I doubt there is something wrong with the data. What can I do with the data? enter image description here

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    $\begingroup$ It looks as if your data were right-censored. Clustering has nothing to to with it. This question, thought not exactly same, was instructive. $\endgroup$ – ttnphns May 24 '15 at 18:43
  • $\begingroup$ Any chance these are 0 values in one of the attributes? Without PCA, it would probably be easier to interpret. $\endgroup$ – Has QUIT--Anony-Mousse May 25 '15 at 14:55
  • $\begingroup$ There is no 0 value in the attributes. $\endgroup$ – user82904 Jul 21 '15 at 19:21

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