def sigmoid(x):
    return 1. / (1. + safeExp(-x))
Given a list of pathnames, returns the longest common leading component
dataset/ETHPy150Open pybrain/pybrain/pybrain/tools/functions.py/sigmoid--crossover with--dataset/ETHPy150Open azoft-dev-team/imagrium/env/Lib/posixpath.py/commonprefix