Getting error when plotting a figure with sublpots using axes in matplotlib

Question

I tried to plot the subplots using the below code .But I am getting 'AttributeError: 'numpy.ndarray' object has no attribute 'boxplot'.

but changing the plt.subplots(1,2) it is plotting the box plot with indexerror.

import matplotlib.pyplot as plt
import seaborn as sns

fig = plt.Figure(figsize=(10,5))

x = [i for i in range(100)]


fig , axes = plt.subplots(2,2)

for i in range(4):
    sns.boxplot(x, ax=axes[i])

plt.show();

I am expecting four subplots should be plotted but AttributeError is throwing

Sheldore · Accepted Answer · 2019-02-05 19:05:25Z

0

Couple of issues in your plot:

You are defining the figure twice which is not needed. I merged them into one.
You were looping 4 times using range(4) and using axes[i] for accessing the subplots. This is wrong for the following reason: Your axes is 2 dimensional so you need 2 indices to access it. Each dimension has length 2 because you have 2 rows and 2 columns so the only indices you can use are 0 and 1 along each axis. For ex. axes[0,1], axes[1,0] etc.
As @DavidG pointed out, you don't need the list comprehension. YOu can directly use range(100)

The solution is to expand/flatten make your 2d axes object and then directly iterate over it which gives you individual subplot, one at a time. The order of subplots will be row wise.

Complete working code

import matplotlib.pyplot as plt
import seaborn as sns

x = range(100)

fig , axes = plt.subplots(2,2, figsize=(10,5))

for ax_ in axes.flatten():
    sns.boxplot(x, ax=ax_)

plt.show()

edited Feb 5, 2019 at 19:05

answered Feb 5, 2019 at 18:56

Sheldore

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1 Comment

DavidG Over a year ago

Could even remove the list comprehension as that isn't really needed either?

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