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Seaborn RugPlot

What is Rug Plot

A rug Plot is a type of plot of data for a single quantitative variable, displayed as marks along an axis. It is used to visualise the distribution of the data.

Rug Plot is generally used in a combination with 2-D scatter plots by placing a rug plot for x values along the x-axis and for y values along the y-axis.

Rug Plot perpendicular marker looks like tassels along the edges of the rectangular "rug" of the scatter plot.

It generally plots marginal distribution by drawing ticks along the x-axis and y-axis.
This function is intended to complement other plots by showing the location of individual observations in an unobtrusive way.

Rug Plot Syntax

sns.rugplot(x=None, *, height=0.025, axis=None, ax=None, 
data=None, y=None, hue=None, palette=None, hue_order=None, 
hue_norm=None, expand_margins=True, legend=True, a=None, **kwargs)

Parameter:

  • x,y: x and y are variables that specify the position along the x and y-axis.
  • height: It specifies the portion of the axis covered by each rug element.
  • axis: It specifies the axis on which the rug element has to be plotted.
  • ax: It is pre-existing axes for the plot.
  • data: It input the data structure for which the rug has to be plotted.
  • hue: It is a semantic variable that is mapped to determine the color of the plot elements
  • palette: It is used to choose color which is to be used for plotting.
  • expand_margins: It is a boolean value. If it is True, it increases the axes margins by the height of the rug to avoid overlap with other elements.
  • legend: It is a boolean value. If it is False, it does not add a legend for semantic variables. 

Example: sns rugplot

Import the important libraries.

import seaborn as sns
import matplotlib.pyplot as plt

Load the dataset which is to be used for plotting

data = sns.load_dataset("taxis")
data.head(5)

Output

what is a rug plot

Example: For a one variable

#A basic rug plot for one variable
plt.figure(figsize=(15,5))
sns.rugplot(data=data, x ="fare")
plt.show()

Output:

seaborn rugplot

Example: Create two variable rug plot

#A basic rug plot for two variable
plt.figure(figsize=(15,5))
sns.rugplot(data=data, x ="fare",y="total")
plt.show()

Output:

rug plot seaborn

Example: Group by categorial value

#grouping it by categorial value using hue
plt.figure(figsize=(20,5))
sns.rugplot(data=data, x ="fare",y="total",hue='payment')
plt.show()

Output:

rug plot in python

Example: Combining  RUG Plot with Scatter Plot

#with a SCATTER PLOT
plt.figure(figsize=(20,5))
sns.scatterplot(data=data, x ="fare",y="total",hue='payment')
sns.rugplot(data=data, x ="fare",y="total",hue='payment')
plt.show()

Output:

rug plot python

Submitted by devanshi.srivastava on March 2, 2021

Devanshi, is working as a Data Scientist with iVagus. She has expertise in Python, NumPy, Pandas and other data science technologies.

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