def plot_mod_fit(df, col):
    import matplotlib.pyplot as plt
    fig = plt.figure(figsize=(8, 5)) 
# set plot area
    ax = fig.gca() 
# define axis  
    df.loc[:, col].plot(color = 'r', ax = ax)
    df.loc[:, 'scores'].plot(ax = ax) 
    ax.set_title('Actual ' + col + 'vs. the predicted values') 
# give the plot a main title
    ax.set_xlabel('Date') # set text for the x axis
    ax.set_ylabel(col)# set text for y axis
plot_mod_fit(CBE, 'elec_log')