The distances
package provides tools for constructing,
manipulating and using distance metrics in R. It calculates distances
only as needed (unlike the standard dist
function which
derives the complete distance matrix when called). This saves memory and
can increase speed. The package also includes functions for fast nearest
and farthest neighbor searching.
distances
is on CRAN and can be installed by
running:
install.packages("distances")
It is recommended to use the stable CRAN version, but the latest development version can be installed directly from Github using devtools:
if (!require("devtools")) install.packages("devtools")
devtools::install_github("fsavje/distances")
The package contains compiled code, and you must have a development
environment to install the development version. (Use
devtools::has_devel()
to check whether you do.) If no
development environment exists, Windows users download and install Rtools and
macOS users download and install Xcode.