# fpc v2.1-11

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## Flexible Procedures for Clustering

Various methods for clustering and cluster validation.
Fixed point clustering. Linear regression clustering. Clustering by
merging Gaussian mixture components. Symmetric
and asymmetric discriminant projections for visualisation of the
separation of groupings. Cluster validation statistics
for distance based clustering including corrected Rand index.
Cluster-wise cluster stability assessment. Methods for estimation of
the number of clusters: Calinski-Harabasz, Tibshirani and Walther's
prediction strength, Fang and Wang's bootstrap stability.
Gaussian/multinomial mixture fitting for mixed
continuous/categorical variables. Variable-wise statistics for cluster
interpretation. DBSCAN clustering. Interface functions for many
clustering methods implemented in R, including estimating the number of
clusters with kmeans, pam and clara. Modality diagnosis for Gaussian
mixtures. For an overview see package?fpc.

## Functions in fpc

Name | Description | |

adcoord | Asymmetric discriminant coordinates | |

ancoord | Asymmetric neighborhood based discriminant coordinates | |

calinhara | Calinski-Harabasz index | |

can | Generation of the tuning constant for regression fixed point clusters | |

cat2bin | Recode nominal variables to binary variables | |

cdbw | CDbw-index for cluster validation | |

bhattacharyya.dist | Bhattacharyya distance between Gaussian distributions | |

bhattacharyya.matrix | Matrix of pairwise Bhattacharyya distances | |

awcoord | Asymmetric weighted discriminant coordinates | |

batcoord | Bhattacharyya discriminant projection | |

classifdist | Classification of unclustered points | |

clucols | Sets of colours and symbols for cluster plotting | |

dipp.tantrum | Simulates p-value for dip test | |

diptest.multi | Diptest for discriminant coordinate projection | |

con.comp | Connectivity components of an undirected graph | |

confusion | Misclassification probabilities in mixtures | |

discrproj | Linear dimension reduction for classification | |

distancefactor | Factor for dissimilarity of mixed type data | |

fixreg | Linear Regression Fixed Point Clusters | |

flexmixedruns | Fitting mixed Gaussian/multinomial mixtures with flexmix | |

cluster.stats | Cluster validation statistics | |

cluster.varstats | Variablewise statistics for clusters | |

distcritmulti | Distance based validity criteria for large data sets | |

dridgeline | Density along the ridgeline | |

discrcoord | Discriminant coordinates/canonical variates | |

discrete.recode | Recodes mixed variables dataset | |

findrep | Finding representatives for cluster border | |

clusterboot | Clusterwise cluster stability assessment by resampling | |

cmahal | Generation of tuning constant for Mahalanobis fixed point clusters. | |

cov.wml | Weighted Covariance Matrices (Maximum Likelihood) | |

fixmahal | Mahalanobis Fixed Point Clusters | |

mergeparameters | New parameters from merging two Gaussian mixture components | |

minsize | Minimum size of regression fixed point cluster | |

clujaccard | Jaccard similarity between logical vectors | |

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

cweight | Weight function for AWC | |

dbscan | DBSCAN density reachability and connectivity clustering | |

mahalconf | Mahalanobis fixed point clusters initial configuration | |

mergenormals | Clustering by merging Gaussian mixture components | |

neginc | Neg-entropy normality index for cluster validation | |

prediction.strength | Prediction strength for estimating number of clusters | |

rFace | "Face-shaped" clustered benchmark datasets | |

solvecov | Inversion of (possibly singular) symmetric matrices | |

kmeansCBI | Interface functions for clustering methods | |

kmeansruns | k-means with estimating k and initialisations | |

mixdens | Density of multivariate Gaussian mixture, mclust parameterisation | |

mixpredictive | Prediction strength of merged Gaussian mixture | |

fpc-package | fpc package overview | |

fpclusters | Extracting clusters from fixed point cluster objects | |

itnumber | Number of regression fixed point cluster iterations | |

jittervar | Jitter variables in a data matrix | |

sseg | Position in a similarity vector | |

randcmatrix | Random partition matrix | |

randconf | Generate a sample indicator vector | |

cvnn | Cluster validation based on nearest neighbours | |

dudahart2 | Duda-Hart test for splitting | |

extract.mixturepars | Extract parameters for certain components from mclust | |

mahalanodisc | Mahalanobis for AWC | |

mahalanofix | Mahalanobis distances from center of indexed points | |

pamk | Partitioning around medoids with estimation of number of clusters | |

piridge | Ridgeline Pi-function | |

unimodal.ind | Is a fitted denisity unimodal or not? | |

simmatrix | Extracting intersections between clusters from fpc-object | |

tdecomp | Root of singularity-corrected eigenvalue decomposition | |

tonedata | Tone perception data | |

ridgeline.diagnosis | Ridgeline plots, ratios and unimodality | |

weightplots | Ordered posterior plots | |

lcmixed | flexmix method for mixed Gaussian/multinomial mixtures | |

localshape | Local shape matrix | |

mvdcoord | Mean/variance differences discriminant coordinates | |

ncoord | Neighborhood based discriminant coordinates | |

piridge.zeroes | Extrema of two-component Gaussian mixture | |

plotcluster | Discriminant projection plot. | |

wfu | Weight function (for Mahalabobis distances) | |

xtable | Partition crosstable with empty clusters | |

nselectboot | Selection of the number of clusters via bootstrap | |

regmix | Mixture Model ML for Clusterwise Linear Regression | |

ridgeline | Ridgeline computation | |

zmisclassification.matrix | Matrix of misclassification probabilities between mixture components | |

No Results! |

## Last month downloads

## Details

Date | 2018-01-05 |

License | GPL |

URL | http://www.homepages.ucl.ac.uk/~ucakche/ |

NeedsCompilation | no |

Packaged | 2018-01-11 22:06:47 UTC; chrish |

Repository | CRAN |

Date/Publication | 2018-01-13 00:18:28 UTC |

imports | class , cluster , diptest , flexmix , graphics , grDevices , kernlab , MASS , mclust , methods , mvtnorm , prabclus , robustbase , stats , trimcluster , utils |

suggests | pdfCluster , tclust |

depends | R (>= 2.0) |

Contributors | Christian Hennig |

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