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StoreProtocol


Unit:SDL_dendrogram
Class:TDendrogram
Declaration:procedure StoreProtocol (FName: string);

The method StoreProtocol stores the results of the cluster analysis in the textfile FName.

The format of the protocol is as follows:

  • first line: distance measure
  • second line: clustering method
  • third line: empty
  • fourth line: captions of following columns
  • fifth and following lines: cluster data

Example: The results of the cluster analysis shown below have been obtained from a set of 20 observations (objects) with four variables by applying Ward's algorithm (ClusterMethod = cmWard) to it.

 distance measure: Dice coefficient
clustering method: Ward's method

 Obj.1 Obj.2  New Cluster   Distance
   2    19        21        5.0945
   1    16        22        5.3573
   3     6        23        7.2815
   9    10        24        10.2774
   8    14        25        10.6847
  12    18        26        13.0239
   4    25        27        13.5628
  24    15        28        16.0441
   5    13        29        16.5704
   7    17        30        19.2583
  23    27        31        24.1079
  11    29        32        24.2236
  26    20        33        24.6635
  22    21        34        26.9456
  31    34        35        39.2175
  32    28        36        52.7880
  36    30        37        90.4147
  35    33        38        109.4378
  37    38        39        315.1660

The table above is to interpret as follows: clusters (objects) 2 and 19 are joined to form the new cluster 21; the distance between the two original clusters is 5.09. Next, clusters 1 and 16 are joined to form cluster 22 at a distance of 7.28, and so on. Note that any cluster numbers below or equal to Data.NrOfRows designate the original objects, whereas higher numbers designate clusters built up of other objects and/or clusters.



Last Update: 2012-Oct-20