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fpc (version 1.1-2)

Fixed point clusters, clusterwise regression and discriminant plots

Description

Fuzzy and crisp fixed point cluster analysis based on Mahalanobis distance and linear regression fixed point clusters. Semi-explorative, semi-model-based clustering methods, operating on n*p data, do not need prespecification of number of clusters, produce overlapping clusters. Symmetric and asymmetric discriminant projections separate groups optimally, used to visualize the separation of groupings. Corresponding plot methods. Clusterwise linear regression by normal mixture modeling. Cluster validation statistics for distance based clustering. Note: If you use an R-version older than 1.9.0, you will need packages lqs and mva installed.

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Version

Install

install.packages('fpc')

Monthly Downloads

21,008

Version

1.1-2

License

GPL

Maintainer

Christian Hennig

Last Published

September 24th, 2024

Functions in fpc (1.1-2)

batcoord

Bhattacharyya discriminant projection
minsize

Minimum size of regression fixed point cluster
awcoord

Asymmetric weighted discriminant coordinates
ancoord

Asymmetric neighborhood based discriminant coordinates
mahalanodisc

Mahalanobis for AWC
tonedata

Tone perception data
discrcoord

Discriminant coordinates/canonical variates
rFace

"Face-shaped" clustered benchmark datasets
c.weight

Weight function for AWC
con.comp

Connectivity components of an undirected graph
mahalanofix

Mahalanobis distances from center of indexed points
ncoord

Neighborhood based discriminant coordinates
itnumber

Number of regression fixed point cluster iterations
mahalconf

Mahalanobis fixed point clusters initial configuration
cluster.stats

Cluster validation statistics
plotcluster

Discriminant projection plot.
regmix

Mixture Model ML for Clusterwise Linear Regression
sseg

Position in a similarity vector
randconf

Generate a sample indicator vector
cmahal

Generation of tuning constant for Mahalanobis fixed point clusters.
cov.wml

Weighted Covariance Matrices (Maximum Likelihood)
randcmatrix

Random partition matrix
fixmahal

Mahalanobis Fixed Point Clusters
tdecomp

Root of singularity-corrected eigenvalue decomposition
solvecov

Inversion of (possibly singular) symmetric matrices
discrproj

Linear dimension reduction for classification
mvdcoord

Mean/variance differences discriminant coordinates
fpclusters

Extracting clusters from fixed point cluster objects
simmatrix

Extracting intersections between clusters from fpc-object
clusexpect

Expected value of the number of times a fixed point cluster is found
wfu

Weight function (for Mahalabobis distances)
fixreg

Linear Regression Fixed Point Clusters
can

Generation of the tuning constant for regression fixed point clusters
adcoord

Asymmetric discriminant coordinates