Credible Visualization for Two-Dimensional Projections of Data

Projections are common dimensionality reduction methods, which represent high-dimensional data in a two-dimensional space. However, when restricting the output space to two dimensions, which results in a two dimensional scatter plot (projection) of the data, low dimensional similarities do not represent high dimensional distances coercively [Thrun, 2018]. This could lead to a misleading interpretation of the underlying structures [Thrun, 2018]. By means of the 3D topographic map the generalized Umatrix is able to depict errors of these two-dimensional scatter plots. The package is based on the book of Thrun, M.C.: "Projection Based Clustering through Self-Organization and Swarm Intelligence" (2018) .


Reference manual

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1.0.0 by Michael Thrun, 5 months ago

Browse source code at

Authors: Michael Thrun [aut, cre, cph], Alfred Ultsch [ths]

Documentation:   PDF Manual  

GPL-3 license

Imports Rcpp, ggplot2

Suggests DataVisualizations, DatabionicSwarm, matrixStats, rgl, grid, mgcv, png, ProjectionBasedClustering, reshape2, fields

Linking to Rcpp, RcppArmadillo

System requirements: C++11

Imported by DatabionicSwarm, ProjectionBasedClustering.

See at CRAN