- Added JSS reference.

- 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.

- Fixed typos in some examples.

- In the functions
`pwd()`

,`swd()`

and`hpwd()`

changed the name of the parameter`nsamp`

in`n`

.

- In the functions
`pwd()`

and`swd()`

introduced stopping criterion.

- 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`vec`

in`con`

.

- 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.

- 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 of guides:
- some updates to the examples;
- removed some non-ASCII characters;
- inserted links to reference websites.

- 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`

- 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.

- 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.

- Correction of some typos along the guides.

- Added a
`NEWS.md`

file to track changes to the package. - Updated
`DESCRIPTION`

file.

- First release on CRAN.