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Python Data Analysis

You're reading from   Python Data Analysis Perform data collection, data processing, wrangling, visualization, and model building using Python

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Product type Paperback
Published in Feb 2021
Publisher Packt
ISBN-13 9781789955248
Length 478 pages
Edition 3rd Edition
Languages
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Authors (2):
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Ivan Idris Ivan Idris
Author Profile Icon Ivan Idris
Ivan Idris
Avinash Navlani Avinash Navlani
Author Profile Icon Avinash Navlani
Avinash Navlani
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Toc

Table of Contents (20) Chapters Close

Preface 1. Section 1: Foundation for Data Analysis
2. Getting Started with Python Libraries FREE CHAPTER 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

Summary

In this chapter, the time-series examples we used were annual sunspot cycles data, sales data, and beer production. We learned that it's common to try to derive a relationship between a value and another data point or a combination of data points with a fixed number of periods in the past in the same time series. We learned how moving averages convert the random variation trend into a smooth trend using a window size. We learned how the DataFrame.rolling() function provides win_type string parameters for different window functions. Cointegration is similar to correlation and is a metric to define the relatedness of two time series. We also focused on STL decomposition, autocorrelation, autoregression, the ARMA model, Fourier analysis, and spectral analysis filtering.

The next chapter, Chapter 9, Supervised Learning – Regression Analysis, will focus on the important topics of regression analysis and logistic regression in Python. The chapter starts with multiple linear...

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