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Python Violin plot Gallery | Dozens of examples with code

Violin plot

A violin plot allows you to visualize the distribution of a numeric variable for one or several groups. Seaborn is particularly adapted to build it thanks to its violin() function. Violin plots deserve more attention than boxplots, which can sometimes hide features of the data.

⏱ Quick start

Seaborn is definitely the best library to quickly build a violin plot. It offers a dedicated violinplot() function that roughly works as follows:🔥

# library & dataset import seaborn as sns df = sns.load_dataset('iris') # plot sns.violinplot(x=df["species"], y=df["sepal_length"])

🔎 violinplot() function parameters→ see full doc

→ Description

The violinplot() function of seaborn creates violin plots which show the distribution of quantitative data across several levels of one (or more) categorical variables. It combines a box plot with a kernel density estimation.

→ Arguments

xycolorhuesplitpalettelinewidthlinecolorsaturationfill

Description

Inputs for plotting long-form data. This parameter specify the variable for the x axes.

Possible values → string, vector, or pd.Series

Can be vector names in the data DataFrame, or external vectors passed directly.

Code Example

# Library & Dataset import seaborn as sns import matplotlib.pyplot as plt tips = sns.load_dataset("tips") # Plot sns.violinplot(x="total_bill", data=tips) plt.show()

Violin charts with Matplotlib

Matplotlib, as usual, is another great otion to build violin charts with python. It comes with a violinplot() function that does all the hard work for us.

Here are a couple of examples:

Best python violin chart examples

The web is full of astonishing charts made by awesome bloggers, (often using R). The Python graph gallery tries to display (or translate from R) some of the best creations and explain how their source code works. If you want to display your work here, please drop me a word or even better, submit a Pull Request!

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