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SOMbrero (version 1.5.0)

SOM Bound to Realize Euclidean and Relational Outputs

Description

The stochastic (also called on-line) version of the Self-Organising Map (SOM) algorithm is provided. Different versions of the algorithm are implemented, for numeric and relational data and for contingency tables as described, respectively, in Kohonen (2001) , Olteanu & Villa-Vialaneix (2005) and Cottrell et al (2004) . The package also contains many plotting features (to help the user interpret the results), can handle (and impute) missing values and is delivered with a graphical user interface based on 'shiny'.

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Version

Install

install.packages('SOMbrero')

Monthly Downloads

1,558

Version

1.5.0

License

GPL (>= 2)

Maintainer

Nathalie Vialaneix

Last Published

October 6th, 2025

Functions in SOMbrero (1.5.0)

quality

Compute SOM Quality Criteria
superClass

Create Super-Clusters from SOM Results
sombreroGUI

Graphical Web User Interface for SOMbrero
somRes.plotting

Complete Documentation on somRes Plots
protoDist

Compute Distances Between Prototypes
trainSOM

Run the SOM Algorithm
initGrid

Create an Empty Grid
lesmis

Dataset "Les Misérables"
projectIGraph

Compute the Projection of a Graph on a Grid
predict.somRes

Predict the Class of a New Observation
presidentielles2002

2002 French Presidential Election Dataset
plot.somRes

Plot a somRes Object
myGrid

Methods for 'myGrid' Objects.
impute

Impute values from prototype information
SOMbrero-package

Self Organizing Maps Bound to Realize Euclidean and Relational Outputs
initSOM

Initialize Parameters for the SOM Algorithm