AgglomerativeNestingClustering: AGNES clustering

In FCPS: Fundamental Clustering Problems Suite

AGNES clustering

Description

Agglomerative hierarchical clustering (AGNES)of [Rousseeuw/Kaufman, 1990, pp. 199-252]

Usage

AgglomerativeNestingClustering(DataOrDistances, ClusterNo,

PlotIt = FALSE, Standardization = TRUE, ...)

Arguments

DataOrDistances	[1:n,1:d] matrix of dataset to be clustered. It consists of n cases or d-dimensional data points. Every case has d attributes, variables or features. Alternatively, symmetric [1:n,1:n] distance matrix
ClusterNo	A number k which defines k different clusters to be built by the algorithm. if ClusterNo=0, the dendrogram is generated instead of a clustering to estimate the numbers of clusters.
PlotIt	Default: FALSE if ClusterNo!=0, If TRUE or ClusterNo=0 plots the first three dimensions of the dataset with colored three-dimensional data points defined by the clustering stored in Cls
Standardization	DataOrDistances is standardized before calculating the dissimilarities. Measurements are standardized for each variable (column), by subtracting the variable's mean value and dividing by the variable's mean absolute deviation. If DataOrDistances is already a distance matrix, then this argument will be ignored.
...	Further arguments to be set for the clustering algorithm, if not set, default arguments are used.

Value

List of

Cls	[1:n] numerical vector with n numbers defining the classification as the main output of the clustering algorithm. It has k unique numbers representing the arbitrary labels of the clustering.
Dendrogram	Dendrogram of hierarchical clustering algorithm
Object	Object defined by clustering algorithm as the other output of this algorithm

Author(s)

Michael Thrun

References

[Rousseeuw/Kaufman, 1990] Rousseeuw, P. J., & Kaufman, L.: Finding groups in data, Belgium, John Wiley & Sons Inc., ISBN: 0471735787, doi 10.1002/9780470316801, Online ISBN: 9780470316801, 1990.

[Struyf et al., 1996] Struyf,A., Hubert, M. and Rousseeuw, Peter J.: Clustering in an Object-Oriented Environment, Journal of Statistical Software, Vol. 1, doi: 10.18637/jss.v001.i04, 1996.

[Struyf et al., 1997] Struyf, A., Hubert, M. and Rousseeuw, P.J.: Integrating Robust Clustering Techniques in S-PLUS, Computational Statistics and Data Analysis, Vol. 26, pp. 17–37, 1997.

See Also

agnes

Examples

data('Hepta')
CA=AgglomerativeNestingClustering(Hepta$Data,ClusterNo=7,PlotIt=FALSE)
## Not run: 
ClusterDendrogram(CA$Dendrogram,7,main='AGNES clustering')

print(CA$Object)
plot(CA$Object)

## End(Not run)

FCPS documentation built on Oct. 19, 2023, 5:06 p.m.