Routines to select and visualize the maxima for a given strict partial order. This especially includes the computation of the Pareto frontier, also known as (Top-k) Skyline operator, and some generalizations (database preferences).
This the Python port of the rPref package.
Package web site: http://p-roocks.de/rpref/index.php?section=pypref
Copy the repository, e.g., in a sub folder of your home directory
cd ~ git clone https://github.com/patrickroocks/pypref pypref
Start Python, move to this directory (replace "/home/patrick" by your home directory) and import it:
import os
os.chdir("/home/patrick/pypref")
import pypref as p
If everything went well, the following first tiny example should work:
mtcars = p.get_mtcars()
pref = p.high("mpg") * p.high("hp")
sky = pref.psel(mtcars)
btg = pref.btg(mtcars)
See pypref-examples.py for more examples.