![]() Sns.boxplot(data=df, x='day', y='total_bill')Ī basic Seaborn boxplot created with the sns.boxplot() function Let’s see how we’d do this in Python: # Creating our first boxplot Let’s start by creating a boxplot that breaks the data out by day column on the x-axis and shows the total_bill column on the y-axis. How to Create a Boxplot in SeabornĬreating a boxplot in Seaborn is made easy by using the sns.boxplot() function. Now that we have a dataset loaded, let’s dive into how to use Seaborn to create a boxplot. # total_bill tip sex smoker day time size Let’s load the dataset using the Seaborn load_dataset() function and take a quick look at it: # Loading a Sample Dataset Seaborn comes with a number of built-in datasets, including a valuable tips dataset that shows tips given to restaurant workers. To follow along with this tutorial, let’s load a sample dataset that we can use throughout this tutorial. ax=None represents the axes object to draw on.whis=1.5 represents the proportion of the interquartile range to extend the plot whiskers.linewidth=None represents the width of the lines in the graph.fliersize=5 represents the size of the markers for outliers.dodge=True represents when hue nesting is used, how to shift categorical data.width=0.8 represents the width of an element.saturation=0.75 represents the saturation of the color.palette=None represents the pallette to use.color=None represents the color(s) to use.orient=None indicates whether data should be horizontal or vertical.hue_order=None similar to order, represents how to order your data.order=None represents how to order your data.data=None represents the DataFrame to use for your data.hue=None represents the data to use to break your data by break.y=None represents the data to use for the y-axis.x=None represents the data to use for the x-axis.Let’s break down what each of these parameters does: Sns.boxplot(x=None, y=None, hue=None, data=None, order=None, hue_order=None, orient=None, color=None, palette=None, saturation=0.75, width=0.8, dodge=True, fliersize=5, linewidth=None, whis=1.5, ax=None) This can be an important first step that allows you to better understand what can be done with the function and how you can customize your code: # Understanding the sns.boxplot() Function Understanding the Seaborn Boxplot Functionīefore diving into creating boxplots with Seaborn, let’s take a look at the function itself and the different parameters that it offers. Inversely, if the median line is lower in the box, the data is said to be positively skewed. If the line is higher in the interquartile range (the box), the data is said to be negatively skewed. The median line can be very descriptive as well. This post is part of the Seaborn learning path! The learning path will take you from a beginner in Seaborn to creating beautiful, customized visualizations. ![]() Outliers are generally classified as being outside 1.5 times the interquartile range. ![]() Specifically, boxplots show a five-number summary that includes:Īdditionally, boxplots will identify any outliers that exist in the data. It helps you understand the data in a much clearer way than just seeing a single summary statistic. A boxplot is a helpful data visualization that illustrates five different summary statistics for your data.
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