subplot error in Matplotlib using seaborn

Question

I am plotting subplots of heatmap using seaborn with the following stripped down code. I get "AttributeError: 'numpy.ndarray' object has no attribute 'spines'" if I use nrows=2 and ncols=2, the plot works if either of nrows or ncols=1. How do I fix this?

import pandas as pd
import matplotlib.pyplot as plt
import seaborn as sns
fig, axes  = plt.subplots(nrows=2, ncols=2)
sns.heatmap(Lpnl['19'],ax=axes[0])
plt.show()

looks like you're potentially using pandas dataframes; have you considered using a seaborn.FacetGrid instead of subplots? — Constantino
– Constantino, Commented Jun 3, 2016 at 2:15
@Constantino: Would you be a able to suggest me or point to a link on how to plot multiple heatmaps with FacetGrid? — user3404344
– user3404344, Commented Jun 6, 2016 at 1:14
start going through the FacetGrid documentation, it's quite good. — Constantino
– Constantino, Commented Jun 6, 2016 at 14:34

mwaskom · Accepted Answer · 2016-06-03 03:03:12Z

21

Your axes variable is a 2x2 numpy array. So when you do axes[0], it is giving you the first row. I assume you want axes[0, 0] or axes.flat[0].

answered Jun 3, 2016 at 3:03

mwaskom

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