How add plot to subplot matplotlib
<p>I have plots like this </p>

<pre><code>fig = plt.figure()
desire_salary = (df[(df['inc'] &lt;= int(salary_people))])
print desire_salary
# Create the pivot_table
result = desire_salary.pivot_table('city', 'cult', aggfunc='count')

# plot it in a separate step. this returns the matplotlib axes
ax = result.plot(kind='bar', alpha=0.75, rot=0, label="Presence / Absence of cultural centre")

ax.set_xlabel("Cultural centre")
ax.set_ylabel("Frequency")
ax.set_title('The relationship between the wage level and the presence of the cultural center')
plt.show()
</code></pre>

<p>I want to add this to <code>subplot</code>. I try </p>

<pre><code>fig, ax = plt.subplots(2, 3)
...
ax = result.add_subplot()
</code></pre>

<p>but it returns 
AttributeError: 'Series' object has no attribute 'add_subplot'`. How can I check this error?</p>