import numpy as np
import matplotlib.pyplot as plt


def tfplot(s, fs, name, plottitle):
    """
    Displays a figure window with two subplots.  Above, the signal S is plotted in time domain;
    below, the signal is plotted in frequency domain.

    :param s: signal to be plotted
    :param fs: sampling frequency
    :param name: NAME is the "name" of the signal, e.g., if NAME is 's', then the labels on the y-axes will be
        's(t)' and '|s_F(f)|', respectively.
    :param plottitle: TITLE is the title that will appear above the two plots.
    :return:
    """

    return
