How can I plot a dataframe bar-graph using pandas in tkinter? - pandas

Question

I am trying to plot a dataframe graph in tkinter , such that it is ploted in the window of the application.
My code is :
import tkinter as tk
from tkinter import ttk, Canvas
from matplotlib.figure import Figure
import matplotlib.pyplot as plt
from matplotlib.backends.backend_tkagg import FigureCanvasTkAgg
import pandas as pd
class application():
def __init__(self):
self.win = tk.Tk()
self.win.title('Emetor')
self.win.geometry('700x650+230+30')
self.win.configure(background='pale green')
self.createWidgets()
def createWidgets(self):
self.var1 = tk.IntVar()
self.check1 = tk.Checkbutton(self.win, text='1',command= self.mat, variable=self.var1)
self.check1.grid(row=1,column=0)
def mat(self):
data=[{'a':1,'b':2},{'a':1,'b':4},{'a':1,'b':6},{'a':1,'b':8}]
index=['1','2','3','4']
fig=Figure(figsize=(4,5), facecolor='white')
a=fig.add_subplot(111)
df = pd.DataFrame(data, index=index)
df.plot(kind='bar')
plt.show()
canvas=FigureCanvasTkAgg(fig, self.win)
canvas.get_tk_widget().grid(row=1, column=0, columnspan=4)
canvas.show()
if __name__ == '__main__':
app = application()
app.win.mainloop()
and the result is :
dataframe bar graph
If someone has any idea how to make the figure show in the main widow not in a seperated one, it would be a great help for me .
Thank you :)