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Python Data Analysis - Third Edition

You're reading from  Python Data Analysis - Third Edition

Product type Book
Published in Feb 2021
Publisher Packt
ISBN-13 9781789955248
Pages 478 pages
Edition 3rd Edition
Languages
Authors (2):
Avinash Navlani Avinash Navlani
Profile icon Avinash Navlani
Ivan Idris Ivan Idris
Profile icon Ivan Idris
View More author details
Toc

Table of Contents (20) Chapters close

Preface 1. Section 1: Foundation for Data Analysis
2. Getting Started with Python Libraries 3. NumPy and pandas 4. Statistics 5. Linear Algebra 6. Section 2: Exploratory Data Analysis and Data Cleaning
7. Data Visualization 8. Retrieving, Processing, and Storing Data 9. Cleaning Messy Data 10. Signal Processing and Time Series 11. Section 3: Deep Dive into Machine Learning
12. Supervised Learning - Regression Analysis 13. Supervised Learning - Classification Techniques 14. Unsupervised Learning - PCA and Clustering 15. Section 4: NLP, Image Analytics, and Parallel Computing
16. Analyzing Textual Data 17. Analyzing Image Data 18. Parallel Computing Using Dask 19. Other Books You May Enjoy

Implementing logistic regression using scikit-learn

Now that you know all about logistic regression, let's implement it in Python using the scikit-learn library. Let's create a model using naive Bayes classification. We will do so using the following steps:

  1. We will first import the dataset and the required libraries using the following code:
# Import libraries
import pandas as pd
# read the dataset diabetes = pd.read_csv("diabetes.csv")
# Show top 5-records diabetes.head()

This results in the following output:

In our preceding example, we are reading the Pima Indians Diabetes dataset. This dataset does not give the column names, so we have to do so.

  1. In the read_csv() function, we will pass the header to None and names to the column list that was created before reading the CSV file:
# Split dataset in two parts: feature set and target label
feature_set = ['pregnant', 'insulin', 'bmi', 'age','glucose','bp&apos...
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