Wavlets1.py

import itertools

import matplotlib.pyplot as plt

import pywt


plot_data = [('db', (4, 3)),
             ('sym', (4, 3)),
             ('coif', (3, 2))]


for family, (rows, cols) in plot_data:
    fig = plt.figure(figsize= (15,10))
    fig.subplots_adjust(hspace=0.2, wspace=0.2, bottom=.02, left=.06,
                        right=.97, top=.94)
    colors = itertools.cycle('bgrcmyk')

    wnames = pywt.wavelist(family)
    i = iter(wnames)
    for col in range(cols):
        for row in range(rows):
            try:
                wavelet = pywt.Wavelet(next(i))
            except StopIteration:
                break
            phi, psi, x = wavelet.wavefun(level=5)

            color = next(colors)
            ax = fig.add_subplot(rows, 2 * cols, 1 + 2 * (col + row * cols))
            ax.set_title(wavelet.name + " phi")
            ax.plot(x, phi, color)
            ax.set_xlim(min(x), max(x))

            ax = fig.add_subplot(rows, 2*cols, 1 + 2*(col + row*cols) + 1)
            ax.set_title(wavelet.name + " psi")
            ax.plot(x, psi, color)
            ax.set_xlim(min(x), max(x))
    plt.show()


for family, (rows, cols) in [('bior', (4, 3)), ('rbio', (4, 3))]:
    fig = plt.figure(figsize= (15,10))
    fig.subplots_adjust(hspace=0.5, wspace=0.2, bottom=.02, left=.06,
                        right=.97, top=.94)

    colors = itertools.cycle('bgrcmyk')
    wnames = pywt.wavelist(family)
    i = iter(wnames)
    for col in range(cols):
        for row in range(rows):
            try:
                wavelet = pywt.Wavelet(next(i))
            except StopIteration:
                break
            phi, psi, phi_r, psi_r, x = wavelet.wavefun(level=5)
            row *= 2

            color = next(colors)
            ax = fig.add_subplot(2*rows, 2*cols, 1 + 2*(col + row*cols))
            ax.set_title(wavelet.name + " phi")
            ax.plot(x, phi, color)
            ax.set_xlim(min(x), max(x))

            ax = fig.add_subplot(2*rows, 2*cols, 2*(1 + col + row*cols))
            ax.set_title(wavelet.name + " psi")
            ax.plot(x, psi, color)
            ax.set_xlim(min(x), max(x))

            row += 1
            ax = fig.add_subplot(2*rows, 2*cols, 1 + 2*(col + row*cols))
            ax.set_title(wavelet.name + " phi_r")
            ax.plot(x, phi_r, color)
            ax.set_xlim(min(x), max(x))

            ax = fig.add_subplot(2*rows, 2*cols, 1 + 2*(col + row*cols) + 1)
            ax.set_title(wavelet.name + " psi_r")
            ax.plot(x, psi_r, color)
            ax.set_xlim(min(x), max(x))

plt.show()