CODEWITHSUNDEEP
pythondataframeseabornboxplot
alelew
alelew

Reputation: 163

Plotting several boxplots from different dataframes in one graph

I'm trying to plot several boxplots from different dataframes in one graph. Each dataframe has a different length.

What I'm doing is the folowing:

sns.boxplot(x=df1['Numbers'])
sns.boxplot(x=df2['Numbers'])
sns.boxplot(x=df3['Numbers'])
sns.boxplot(x=df4['Numbers'])

However, the output of doing that is that all boxplots are ploted one over the other and it's not possible to distinguish anything.

Can you help me with this? Regards

Upvotes: 4

Views: 5031

Answers (1)

JohanC
JohanC

Reputation: 80279

You could create a new dataframe, with a column for each of the given dataframes. Pandas will pad the columns with NaNs to compensate for the different lengths.

import matplotlib.pyplot as plt
import seaborn as sns
import pandas as pd
import numpy as np

df1 = pd.DataFrame({'Numbers': np.random.normal(.1, 1, np.random.randint(30, 100)).cumsum()})
df2 = pd.DataFrame({'Numbers': np.random.normal(.2, 1, np.random.randint(30, 100)).cumsum()})
df3 = pd.DataFrame({'Numbers': np.random.normal(.3, 1, np.random.randint(30, 100)).cumsum()})
df4 = pd.DataFrame({'Numbers': np.random.normal(.4, 1, np.random.randint(30, 100)).cumsum()})

combined_dfs = pd.DataFrame({'df1': df1['Numbers'],
                             'df2': df2['Numbers'],
                             'df3': df3['Numbers'],
                             'df4': df4['Numbers']})
sns.set_style('white')
sns.boxplot(data=combined_dfs, palette='flare')
sns.despine()
plt.show()

boxplot of dataframes with different lengths

Upvotes: 9

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