bugPSPP - Bugs: bug #46283, QUICK CLUSTER makes poor choice of...

 
 

bug #46283: QUICK CLUSTER makes poor choice of initial cluster centers

Submitted by:  John Darrington <jmd>
Submitted on:  Sat 24 Oct 2015 04:58:52 PM UTC  
 
Category: NoneSeverity: 5 - Average
Status: FixedAssigned to: None
Open/Closed: ClosedRelease: None
Effort: 0.00

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Sat 24 Oct 2015 04:58:52 PM UTC, original submission:

The initial clusters seem to be hard coded to 1s and 0s.

Hence, if a dataset is not orientated around those values, the end result will be unsatisfactory (for example all cases belonging to one cluster)

example:

DATA LIST notable LIST /x* w *.
begin data.
10 5
20 5
end data.

WEIGHT BY W.

QUICK CLUSTER w /CRITERIA=CLUSTER(2) /PRINT=CLUSTER INITIAL.

John Darrington <jmd>
Project Administrator

 

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    Follow 2 latest changes.

    Date Changed By Updated Field Previous Value => Replaced By
    Thu 12 Nov 2015 05:51:03 PM UTCjmdStatusNone=>Fixed
      Open/ClosedOpen=>Closed

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