muHVT: Collection of functions used for vector quantization and construction of hierarchical voronoi tessellations for data analysis

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Abstract

The muHVT package is a collection of R functions for vector quantization and construction of hierarchical Voronoi tessellations as a data visualization tool to visualize cells using quantization. The hierarchical cells are computed using Hierarchical K-means where a quantization threshold governs the levels in the hierarchy for a set $k$ parameter (the maximum number of cells at each level). The package is particularly helpful to visualize rich multivariate data.

This package additionally provides functions for computing the Sammon’s projection and plotting the heat map of the variables on the tiles of the tessellations.

The muHVT process involves three steps:

  1. Compress: Using a quantization threshold
  2. Project: Using a dimension projection algorithm
  3. Tessellate: Using a Voronoi Tessellation

Vignettes

Following are the links to the vignettes for the muHVT package:

  1. muHVT Vignette: Contains descriptions of the functions used for vector quantization and construction of hierarchical voronoi tessellations for data analysis

  2. muHVT Model Diagnostics Vignette: Contains descriptions of functions used to perform model diagnostics and validation for muHVT model



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muHVT documentation built on April 27, 2022, 5:07 p.m.