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Artificial Intelligence with Python

You're reading from   Artificial Intelligence with Python Your complete guide to building intelligent apps using Python 3.x

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Product type Paperback
Published in Jan 2020
Publisher Packt
ISBN-13 9781839219535
Length 618 pages
Edition 2nd Edition
Languages
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Authors (2):
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Prateek Joshi Prateek Joshi
Author Profile Icon Prateek Joshi
Prateek Joshi
Alberto Artasanchez Alberto Artasanchez
Author Profile Icon Alberto Artasanchez
Alberto Artasanchez
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Toc

Table of Contents (26) Chapters Close

Preface 1. Introduction to Artificial Intelligence 2. Fundamental Use Cases for Artificial Intelligence FREE CHAPTER 3. Machine Learning Pipelines 4. Feature Selection and Feature Engineering 5. Classification and Regression Using Supervised Learning 6. Predictive Analytics with Ensemble Learning 7. Detecting Patterns with Unsupervised Learning 8. Building Recommender Systems 9. Logic Programming 10. Heuristic Search Techniques 11. Genetic Algorithms and Genetic Programming 12. Artificial Intelligence on the Cloud 13. Building Games with Artificial Intelligence 14. Building a Speech Recognizer 15. Natural Language Processing 16. Chatbots 17. Sequential Data and Time Series Analysis 18. Image Recognition 19. Neural Networks 20. Deep Learning with Convolutional Neural Networks 21. Recurrent Neural Networks and Other Deep Learning Models 22. Creating Intelligent Agents with Reinforcement Learning 23. Artificial Intelligence and Big Data 24. Other Books You May Enjoy
25. Index

Operating on time series data

The Pandas library can operate on time series data efficiently and perform various operations like filtering and addition. Conditions can be set, and Pandas will filter the dataset and return the right subset based on the condition. Time series data can be loaded and filtered as well. Let's look at another example to illustrate this.

Create a new Python file and import the following packages:

import numpy as np
import pandas as pd
import matplotlib.pyplot as plt
from timeseries import read_data

Define the input filename:

# Input filename 
input_file = 'data_2D.txt'

Load the third and fourth columns into separate variables:

# Load data
x1 = read_data(input_file, 2)
x2 = read_data(input_file, 3)

Create a Pandas DataFrame object by naming the two dimensions:

# Create pandas dataframe for slicing
data = pd.DataFrame({'dim1': x1, 'dim2': x2})

Plot the data by specifying...

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