The 4.6 version of PNL is available as a free download on our website. You can set up this free PC software on Windows XP/Vista/7/8/10 32-bit. The software lies within Education Tools, more precisely Science Tools. The most popular versions of the software 3.9, 3.0 and 1.0. The default filenames for the program's installer are PNL.exe or PW600.exe etc. This free program was originally created by Alexander V. Sysoyev and the Development Team.
From the developer:
PNL (Probabilistic Networks Library) is an open source tool designed for working with graphical models.
You may want to check out more software, such as PowerCad-PNL, which might be similar to PNL.