def plot(self):
        """
        Plot posterior from simple nonstochetric regression.
        """
        figure()
        plot_envelope(self.M, self.C, self.xplot)
        for i in range(3):
            f = Realization(self.M, self.C)
            plot(self.xplot,f(self.xplot))

        plot(self.abundance, self.frye, 'k.', markersize=4)
        xlabel('Female abundance')
        ylabel('Frye density')
        title(self.name)
        axis('tight')
Plot posterior from simple nonstochetric regression.