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Learning Predictive Analytics with Python

Learning Predictive Analytics with Python

By : Kumar, Gary Dougan
3.4 (11)
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Learning Predictive Analytics with Python

Learning Predictive Analytics with Python

3.4 (11)
By: Kumar, Gary Dougan

Overview of this book

Social Media and the Internet of Things have resulted in an avalanche of data. Data is powerful but not in its raw form - It needs to be processed and modeled, and Python is one of the most robust tools out there to do so. It has an array of packages for predictive modeling and a suite of IDEs to choose from. Learning to predict who would win, lose, buy, lie, or die with Python is an indispensable skill set to have in this data age. This book is your guide to getting started with Predictive Analytics using Python. You will see how to process data and make predictive models from it. We balance both statistical and mathematical concepts, and implement them in Python using libraries such as pandas, scikit-learn, and numpy. You’ll start by getting an understanding of the basics of predictive modeling, then you will see how to cleanse your data of impurities and get it ready it for predictive modeling. You will also learn more about the best predictive modeling algorithms such as Linear Regression, Decision Trees, and Logistic Regression. Finally, you will see the best practices in predictive modeling, as well as the different applications of predictive modeling in the modern world.
Table of Contents (12 chapters)
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10
A. A List of Links
11
Index

Implementing logistic regression with Python


We have understood the mathematics that goes behind the logistic regression algorithm. Now, let's take one dataset and implement a logistic regression model from scratch. The dataset we will be working with is from the marketing department of a bank and has data about whether the customers subscribed to a term deposit, given some information about the customer and how the bank has engaged and reached out to the customers to sell the term deposit.

Let us import the dataset and start exploring it:

import pandas as pd
bank=pd.read_csv('E:/Personal/Learning/Predictive Modeling Book/Book Datasets/Logistic Regression/bank.csv',sep=';')
bank.head()

The dataset looks as follows:

Fig. 6.6: A glimpse of the bank dataset

There are 4119 records and 21 columns. The column names are as follows:

bank.columns.values

Fig. 6.7: The columns of the bank dataset

The details of each column are mentioned in the Data Dictionary file present in the Logistic Regression folder...

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