def plot_frequencies(self, mindB=None, maxdB=None, norm=True):
from pylab import plot, title, xlim, grid, ylim, xlabel, ylabel<EOL>self.compute_response(norm=norm)<EOL>plot(self.frequencies, self.response)<EOL>title("<STR_LIT>" % (self.enbw))<EOL>ylabel('<STR_LIT>')<EOL>xlabel('<STR_LIT>')<EOL>xlim(-<NUM_LIT:0.5>, <NUM_LIT:0.5>)<EOL>y0, y1 = ylim()<EOL>if mindB:<EOL><INDENT>y0 = mindB<EOL><DEDENT>if maxdB is not None:<EOL><INDENT>y1 = maxdB<EOL><DEDENT>else:<EOL><INDENT>y1 = max(self.response)<EOL><DEDENT>ylim(y0, y1)<EOL>grid(True)<EOL>
Plot the window in the frequency domain

        :param mindB: change the default lower y bound
        :param maxdB: change the default upper lower bound
        :param bool norm: if True, normalise the frequency response.

        .. plot::
            :width: 80%
            :include-source:

            from spectrum.window import Window
            w = Window(64, name='hamming')
            w.plot_frequencies()