Changes in version 1.3.5 (2022-08-24) - Added JSS reference. Changes in version 1.3.4 (2020-08-24) - Functions pwd() and swd() now return a list with the following components: s, the samples stored in a matrix nrepl * n, and iterations, the number of iterations run by the algorithm. - Functions stprod() and stsum() now return a list with the following components: mat, the standardized matrix, iterations, the number of iterations run by the algorithm, and conv, the convergence reached by the algorithm. Changes in version 1.3.3 (2020-03-31) - Fixed typos in some examples. Changes in version 1.3.2 (2020-03-04) Usage - In the functions pwd(), swd() and hpwd() changed the name of the parameter nsamp in n. Under the hood - In the functions pwd() and swd() introduced stopping criterion. Changes in version 1.3.1 (2019-12-16) Usage - In the functions pwd(), swd() and hpwd() changed the name of the parameter bexp in beta. - In the functions stprod() and stsum() changed the name of the parameter vecin con. Under the hood - In the functions pwd() and swd() replaced arma::sort_index() with arma::stable_sort_index(). - In the functions pwd(), swd() and hpwd() fixed the sample size check. Changes in version 1.3.0 (2019-08-04) New features - In the functions pwd() and hpwd() a new parameter called bexp has been introduced, which regulates the amount of spread of the samples. Default value set to 10. - In the function swd() the parameter bexp is now set to double and with default equal to 10. Minor improvements - Minor improvements of guides: - some updates to the examples; - removed some non-ASCII characters; - inserted links to reference websites. Changes in version 1.2.0 (2019-03-12) - Changed output of functions pwd(), swd() and hpwd() from a matrix of dimension (nsamp * nrepl) * 2 to a matrix of dimension nrepl * nsamp. - Removed Rdpack from Imports. - Minor improvements of guides. - Changed name of file heurprod.cpp to hpwd.cpp Changes in version 1.1.0 (2019-01-21) New features - Added a new function sbi() for compute the spatial index of a sample, implemented in C++ through the Armadillo library, using Rcpp and RcppArmadillo. - In the functions pwd() and swd() the parameter nrepl is now set to default at 1. - In the functions pwd() and swd() the parameter niter is now set to default at 10. - In the functions stprod() and stsum() the parameter differ is now set to default at 1e-15. - In the functions stprod() and stsum() the parameter niter is now set to default at 1000. - In the functions stprod() and stsum() there is no print for each convergence step anymore. Improvements under the hood - The functions pwd() and swd() now take advantages of the Armadillo library. - The function stprod() is now implemented in C++ through the Armadillo library, using Rcpp and RcppArmadillo. - The function stsum() is now implemented in C++ through the Armadillo library, using Rcpp and RcppArmadillo. - The function hpwd() is now implemented in C++ through the Armadillo library, using Rcpp and RcppArmadillo. - In all the functions there are now checks about the correct inputs. Minor improvements - Correction of some typos along the guides. Miscellaneous - Added a NEWS.md file to track changes to the package. - Updated DESCRIPTION file. Changes in version 1.0.0 (2018-05-30) - First release on CRAN.