This is the statistics extension. It contains few dozens of functions useful for statistical computations. It is a wrapper around 2 scientific libraries, namely DCDFLIB (Library of C routines for Cumulative Distributions Functions, Inverses, and Other parameters) by B. Brown & J. Lavato and RANDLIB by Barry Brown, James Lavato & Kathy Russell. Includes CD and PD functions.
Esta extension PECL no esta ligada a PHP.
Mas informacion sobre nuevos lanzamientos, descargas ficheros de fuentes, informacion sobre los responsables asi como un 'CHANGELOG', se puede encontrar aqui: http://pecl.php.net/package/stats.
Podeis descargar esta DLL de las extensiones PECL desde la pagina PHP Downloads o desde http://snaps.php.net/.
No external libraries are needed. The extension comes bundled with the libraries used.