Statistics: clusterdata

### Function Reference: `clusterdata`

statistics: T = clusterdata (X, cutoff)
statistics: T = clusterdata (X, Name, Value)

Wrapper function for `linkage` and `cluster`.

If cutoff is used, then `clusterdata` calls `linkage` and `cluster` with default value, using cutoff as a threshold value for `cluster`. If cutoff is an integer and greater or equal to 2, then cutoff is interpreted as the maximum number of cluster desired and the "MaxClust" option is used for `cluster`.

If cutoff is not used, then `clusterdata` expects a list of pair arguments. Then you must specify either the "Cutoff" or "MaxClust" option for `cluster`. The method and metric used by `linkage`, are defined through the "linkage" and "distance" arguments.

See also: cluster, dendrogram, inconsistent, kmeans, linkage, pdist

Source Code: clusterdata

### Example: 1

     randn ("seed", 1)  # for reproducibility
     r1 = randn (10, 2) * 0.25 + 1;
     randn ("seed", 5)  # for reproducibility
     r2 = randn (20, 2) * 0.5 - 1;
     X = [r1; r2];

     wnl = warning ("off", "Octave:linkage_savemem", "local");
     T = clusterdata (X, "linkage", "ward", "MaxClust", 2);
     scatter (X(:,1), X(:,2), 36, T, "filled");