Parallel coordinate plot
A parallel plot plot allows to compare the feature of several individual observations (series) on a set of numeric variables. Interestingly, Pandas is probably the best way to plot a parallel coordinate plot with python. Plotly is a good alternative to plot interactive versions though.
⏱ Quick start
Pandas is probably the best way to make a parallel coordinate plot. This library is most often used for data wrangling, but it offers a parallel_coordinates() function dedicated to it.🔥
# libraries
import pandas
import matplotlib.pyplot as plt
from pandas.tools.plotting import parallel_coordinates
# Take the iris dataset
import seaborn as sns
data = sns.load_dataset('iris')
# Make the plot
parallel_coordinates(data, 'species', colormap=plt.get_cmap("Set2"))
plt.show()
Parallel coordinate chart with Python and Pandas
The following examples are dedicated to the parallel_coordinates() function of Pandas. It shows how to apply the most common types of customization.
If you need to go further, here is the complete pandas documentation
Interactive parallel coordinate with plotly
Plotly is a python library that makes the link with Javascript to build interactive charts that you can display in a browser.
The following example is a parallel chart made with this library and the parallel_coordinates() function.
Contact
👋 This document is a work by Yan Holtz. Any feedback is highly encouraged. You can fill an issue on Github, drop me a message onTwitter, or send an email pasting yan.holtz.data with gmail.com.
