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fpc (version 1.1-3)

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

1.1-3

License

GPL

Maintainer

Christian Hennig

Last Published

September 24th, 2024

Functions in fpc (1.1-3)

mahalanodisc

Mahalanobis for AWC
fixreg

Linear Regression Fixed Point Clusters
itnumber

Number of regression fixed point cluster iterations
adcoord

Asymmetric discriminant coordinates
cluster.stats

Cluster validation statistics
randcmatrix

Random partition matrix
mahalconf

Mahalanobis fixed point clusters initial configuration
rFace

"Face-shaped" clustered benchmark datasets
tdecomp

Root of singularity-corrected eigenvalue decomposition
fpclusters

Extracting clusters from fixed point cluster objects
wfu

Weight function (for Mahalabobis distances)
tonedata

Tone perception data
batcoord

Bhattacharyya discriminant projection
awcoord

Asymmetric weighted discriminant coordinates
mvdcoord

Mean/variance differences discriminant coordinates
mahalanofix

Mahalanobis distances from center of indexed points
regmix

Mixture Model ML for Clusterwise Linear Regression
solvecov

Inversion of (possibly singular) symmetric matrices
simmatrix

Extracting intersections between clusters from fpc-object
ancoord

Asymmetric neighborhood based discriminant coordinates
fixmahal

Mahalanobis Fixed Point Clusters
discrproj

Linear dimension reduction for classification
cmahal

Generation of tuning constant for Mahalanobis fixed point clusters.
sseg

Position in a similarity vector
discrcoord

Discriminant coordinates/canonical variates
can

Generation of the tuning constant for regression fixed point clusters
clusexpect

Expected value of the number of times a fixed point cluster is found
con.comp

Connectivity components of an undirected graph
c.weight

Weight function for AWC
ncoord

Neighborhood based discriminant coordinates
plotcluster

Discriminant projection plot.
cov.wml

Weighted Covariance Matrices (Maximum Likelihood)
randconf

Generate a sample indicator vector
minsize

Minimum size of regression fixed point cluster