def pickle(file_name, obj):
    with open(file_name, "wb") as pkl_file:
        pickle.dump(obj, pkl_file)
    return
sigmoid - goes from 0 to 1 as you go from -inf to inf
dataset/ETHPy150Open CGATOxford/cgat/CGAT/IOTools.py/pickle--crossover with--dataset/ETHPy150Open mkenworthy/exorings/starspot/isocosa.py/sigmoid