title: Scrollable tkinter matplotlib subplots
body: <p>I have created a set of plots with matplotlib embedded in a GUI using tkinter, but I would like to make this &quot;figure&quot; scrollable so that the plots can fill a larger space. The scrollbar would allow for different plots to be viewed by scrolling in the vertical direction. So far I have tried the following</p>
  <pre><code>from matplotlib.backends.backend_tkagg import (
      FigureCanvasTkAgg, NavigationToolbar2Tk)
  matplotlib.use(&quot;TkAgg&quot;)
  import matplotlib.pyplot as plt
  import tkinter as tk
  from tkinter import ttk
  
  x=[0,1,2,3,4,5]
  y=[0,2,4,8,16,32]
  
  window = tk.Tk()
  window.geometry('1600x880')
  tab_collection = ttk.Notebook(window)
  first_tab = ttk.Frame(tab_collection)
  tab_collection.add(first_tab, text='First Tab')
  tab_collection.pack(expand=1, fill='both')
  
  first_tab_left=tk.Frame(first_tab)
  first_tab_left.pack(side=tk.LEFT)
  first_tab_right=tk.Frame(first_tab)
  first_tab_right.pack(side=tk.RIGHT)
  
  my_fig = plt.Figure(figsize=(13,10))
  
  my_canvas = FigureCanvasTkAgg(my_fig, first_tab_right)
  my_canvas.get_tk_widget().pack(padx=20,side=tk.BOTTOM, fill=tk.BOTH, expand=False)
  toolbar = NavigationToolbar2Tk(my_canvas, first_tab_right)
  toolbar.update()
  my_canvas._tkcanvas.pack(side=tk.TOP, fill=tk.BOTH, expand=False)
  
  #scrollbar for plots
  scrollbar = tk.Scrollbar(master = first_tab_right, orient= tk.VERTICAL)
  scrollbar.pack(side= tk.RIGHT, fill= tk.Y)
  
  scrollbar[&quot;command&quot;] = my_canvas.get_tk_widget().yview
  my_canvas.get_tk_widget()[&quot;yscrollcommand&quot;] = scrollbar.set
  
  #plot data and draw canvas
  my_ax= my_fig.add_subplot(2,1,1)
  my_ax.plot(x,y)
  my_ax= my_fig.add_subplot(2,1,2)
  my_ax.plot(x,y)
  
  my_fig.tight_layout()
  my_canvas.draw()
  
  window.mainloop()
  </code></pre>
  <p>The scrollbar is not appearing with this code and I cannot scroll downwards. Is subplots the wrong way to go?</p>
  <p>I tried to minimalise the code as much as possible. Let me know if it needs more explanation.</p>
  <p>Thanks for your help!</p>