plt.figure(figsize=(16,8))
df_shift = df_log - df_log.shift(periods = 1)
MAvg_shift = df_shift.rolling(window=12).mean()
MStd_shift = df_shift.rolling(window=12).std()
plt.plot(df_shift, color='c')
plt.plot(MAvg_shift, color='red', label = 'Moving Average')
plt.plot(MStd_shift, color='green', label = 'Standard Deviation')
plt.legend()
plt.show()

#Dropping the null values that we get after applying differencing method
df_shift = df_shift.dropna()