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Python Scikit-learn: Create a joinplot using “kde” to describe individual distributions on the same plot between Sepal length and Sepal width and use ‘+’ sign as marker

Python Machine learning Iris Visualization: Exercise-12 with Solution

Write a Python program to create a joinplot using “kde” to describe individual distributions on the same plot between Sepal length and Sepal width and use ‘+’ sign as marker.

Note:
The kernel density estimation (kde) procedure visualize a bivariate distribution. In seaborn, this kind of plot is shown with a contour plot and is available as a style in jointplot().

Sample Solution:

Python Code:

import pandas as pd
import seaborn as sns
import matplotlib.pyplot as plt
iris = pd.read_csv("iris.csv")
g = sns.jointplot(x="SepalLengthCm", y="SepalWidthCm", data=iris, kind="kde", color="m")
g.plot_joint(plt.scatter, c="b", s=40, linewidth=1, marker="+")
g.ax_joint.collections[0].set_alpha(0)
g.set_axis_labels("$SepalLength(Cm)$", "$SepalWidth(Cm)$") 
plt.show()

Sample Output:

Python Machine learning Output: Iris Visualization: Exercise-12
 

Python Code Editor:


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Next: Write a Python program to create a pairplot of the iris data set and check which flower species seems to be the most separable.

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