Gráficas de Maplotlib en Tkinter

He estado aprendiendo usar el módulo TKinter para hacer interfaces gráficas en Python y me está encantando. A pesar de no tener un asistente gráfico como pyQT, se me ha hecho bastante fácil de usar. Para incrustar gráficos de Matplotlib en un GUI de Tkinter pongo el siguiente ejemplo en donde cada botón manda a graficar una función diferente:

  

	#!/usr/bin/env python3
	# -*- coding: utf-8 -*-
	"""
	Created on Sat Jul 13 15:08:30 2019
	@author: Rodolfo E. Escobar U.
	"""
	import tkinter as tk
	import numpy as np
	import matplotlib.pyplot as plt
	plt.style.use('ggplot')
	from matplotlib.backends.backend_tkagg import FigureCanvasTkAgg
	def B0f():
	x = np.linspace(0,2*np.pi,100)
	y = np.sin(4*x)
	ax.clear()
	ax.plot(x,y), ax.grid(True)
	ax.set_xlabel('$x$'),ax.set_ylabel('$y(x)$')
	ax.set_title('$y(x)=sin(4x)$')
	line.draw()
	def B1f():
	x = np.linspace(0,2*np.pi,100)
	y = np.cos(4*x)
	ax.clear()
	ax.plot(x,y), ax.grid(True)
	ax.set_xlabel('$x$'),ax.set_ylabel('$y(x)$')
	ax.set_title('$y(x)=cos(4x)$')
	line.draw()
	def B2f():
	x = np.linspace(0,2*np.pi,100)
	y = np.exp(-0.5*x)*np.sin(4*x)
	ax.clear()
	ax.plot(x,y), ax.grid(True)
	ax.set_xlabel('$x$'),ax.set_ylabel('$y(x)$')
	ax.set_title('$y(x)=e^{-0.5x}sin(4x)$')
	line.draw()
	def B3f():
	x = np.linspace(0,10,100)
	y = np.exp(x)
	ax.clear()
	ax.plot(x,y), ax.grid(True)
	ax.set_xlabel('$x$'),ax.set_ylabel('y(x)')
	ax.set_title('$y(x) = e^{x}$')
	line.draw()
	def B4f():
	def gaussian(x, mu, sig):
	return 1./(np.sqrt(2.*np.pi)*sig)*np.exp(-np.power((x - mu)/sig, 2.)/2)
	x = np.linspace(0,10,100)
	y = gaussian(x,5,1.3)
	ax.clear()
	ax.plot(x,y), ax.grid(True)
	ax.set_xlabel('$x$'),ax.set_ylabel('y(x)')
	ax.set_title('$y(x) = Gaussian(x,5,1.3)$')
	line.draw()
	#--- Raiz ---
	root = tk.Tk()
	root.geometry('940x450')
	root.title("Tkinter + Matplotlib")
	#------------
	#-- Frames ---
	left_frame = tk.Frame(root)
	left_frame.place(relx=0.03, rely=0.05, relwidth=0.25, relheight=0.9)
	right_frame = tk.Frame(root, bg='#C0C0C0', bd=1.5)
	right_frame.place(relx=0.3, rely=0.05, relwidth=0.65, relheight=0.9)
	#---------------
	#--- Botones ---
	RH = 0.19
	B0 = tk.Button(left_frame,text="SIN(4x)",command = B0f)
	B0.place(relheight=RH, relwidth=1)
	B1 = tk.Button(left_frame,text="COS(4x)",command = B1f)
	B1.place(rely=(0.1 + RH*0.54) ,relheight=RH, relwidth=1)
	B2 = tk.Button(left_frame,text="EXP(-0.5x)SIN(x)",command = B2f)
	B2.place(rely= 2*(0.1 + RH*0.54) ,relheight=RH, relwidth=1)
	B3 = tk.Button(left_frame,text="EXP(x)",command = B3f)
	B3.place(rely= 3*(0.1 + RH*0.54) ,relheight=RH, relwidth=1)
	B4 = tk.Button(left_frame,text="Gaussian(x)",command = B4f)
	B4.place(rely= 4*(0.1 + RH*0.54) ,relheight=RH, relwidth=1)
	#------------
	#--- Agregar figura ---
	figure = plt.Figure(figsize=(5,6), dpi=100)
	ax = figure.add_subplot(111)
	ax.grid(True),ax.set_xlabel('$x$'),ax.set_ylabel('$y(x)$')
	line = FigureCanvasTkAgg(figure, right_frame)
	line.get_tk_widget().pack(side=tk.LEFT, fill=tk.BOTH,expand=1)
	#----------------------
	root.mainloop()

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