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To reference or cite the objects present in the Software Heritage archive, permalinks based on SoftWare Hash IDentifiers (SWHIDs) must be used.
Select below a type of object currently browsed in order to display its associated SWHID and permalink.

  • content
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swh:1:cnt:b30e7869c79ad40c90df3e46d0c27eda949480ea

This interface enables to generate software citations, provided that the root directory of browsed objects contains a citation.cff or codemeta.json file.
Select below a type of object currently browsed in order to generate citations for them.

  • content
(requires biblatex-software package)
Generating citation ...
# Generated by using Rcpp::compileAttributes() -> do not edit by hand
# Generator token: 10BE3573-1514-4C36-9D1C-5A225CD40393

#' fast euclidean distance matrix computation
#'
#' @param x matrix with sample rows which the distanc matrix is computed (to use with vectors, use \code{as.matrix(x)})
#' @examples
#' #require(microbenchmark)
#' #x = rnorm(100)
#' #microbenchmark(fastdist(as.matrix(x)),as.matrix(dist(x)))
#' @export
fastdist <- function(x) {
    .Call('_multivariance_fastdist', PACKAGE = 'multivariance', x)
}

#' double center a symmetric matrix
#'
#' @param x symmetric matrix
#' @param normalize boolean. If \code{TRUE} the matrix will be normalized to mean 1.
#' @keywords internal
doubleCenterSymMat <- function(x, normalize) {
    .Call('_multivariance_doubleCenterSymMat', PACKAGE = 'multivariance', x, normalize)
}

#' double centered Euclidean distance matrix
#'
#' @param x matrix with sample rows which the distanc matrix is computed (to use with vectors, use \code{as.matrix(x)})
#' @param normalize boolean. If \code{TRUE} the matrix will be normalized to mean 1.
#' @export
fastEuclideanCdm <- function(x, normalize) {
    .Call('_multivariance_fastEuclideanCdm', PACKAGE = 'multivariance', x, normalize)
}

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Software Heritage — Copyright (C) 2015–2026, The Software Heritage developers. License: GNU AGPLv3+.
The source code of Software Heritage itself is available on our development forge.
The source code files archived by Software Heritage are available under their own copyright and licenses.
Terms of use: Archive access, API— Content policy— Contact— JavaScript license information— Web API