solvecov

Tries to invert a matrix by <code>solve</code>. If this fails because of
 singularity, an
 eigenvector decomposition is computed, and eigenvalues below
 <code>1/cmax</code> are replaced by <code>1/cmax</code>, i.e., <code>cmax</code> will be
 the corresponding eigenvalue of the inverted matrix.

array

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.
Standardisation of cluster validation statistics by random clusterings and
comparison between many clustering methods and numbers of clusters based on
this.
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.

Christian Hennig

Flexible Procedures for Clustering

solvecov function

<dl> <dt>m</dt>
<dd>a numeric symmetric matrix.</dd> <dt>cmax</dt>
<dd>a positive value, see above.</dd></dl>

Arguments

Christian Hennig
 <a href="/link/christian.hennig%40unibo.it?package=fpc&version=2.2-13" data-mini-rdoc="fpc::christian.hennig@unibo.it">christian.hennig@unibo.it</a>
 <a href="https://www.unibo.it/sitoweb/christian.hennig/en/">https://www.unibo.it/sitoweb/christian.hennig/en/</a>

Author

Inversion of (possibly singular) symmetric matrices — solvecov

<dl>

 <dt>m</dt>
<dd>a numeric symmetric matrix.</dd>

 <dt>cmax</dt>
<dd>a positive value, see above.</dd>

</dl>

Christian Hennig
 <a href='mailto:christian.hennig@unibo.it'>christian.hennig@unibo.it</a>
 <a href='https://www.unibo.it/sitoweb/christian.hennig/en/'>https://www.unibo.it/sitoweb/christian.hennig/en/</a>

solvecov: Inversion of (possibly singular) symmetric matrices

Description

Usage

Value

Arguments

Author

See Also

Examples