Welcome to dissimilarities

Description

The current version includes the following features:

• Dist2Mat: Converting a "dist" object to a numeric matrix.
• subDist2Dist: Subsetting a "dist" object to a "dist" object.
• subDist2Mat: Subsetting a "dist" object to a numeric "matrix".
• subCols: Subsetting a "dist" object to a numeric "matrix" based on some column (equivalently, row) indices.
• fastDist: Computing a "dist" object given a numeric matrix.
• fastDistAB: Computing a numeric "matrix" storing pairwise distances between rows in two matrices.
• get2dFrom1d: Computing 2D-indexing given 1D-indexing (as used in R's "dist" objects).
• get1dFrom2d: Computing 1D-indexing given 2D-indexing (a row-column pair).
• expandDist: Expanding a "dist" object given new data.

Feature(s) under development:

• Providing additional distance functions in fastDist and fastDistAB. The current version only supports popular metrics, namely "euclidean", "manhattan", "minkowski", "maximum", "canberra", and "cosine".

Installation

To download the newest version of the package, use the following R code:

library(devtools)
install_github("edelweiss611428/dissimilarities")