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  • Book Overview & Buying Extending Power BI with Python and R
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Extending Power BI with Python and R

Extending Power BI with Python and R - Second Edition

By : Zavarella
5 (30)
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Extending Power BI with Python and R

Extending Power BI with Python and R

5 (30)
By: Zavarella

Overview of this book

The latest edition of this book delves deep into advanced analytics, focusing on enhancing Python and R proficiency within Power BI. New chapters cover optimizing Python and R settings, utilizing Intel's Math Kernel Library (MKL) for performance boosts, and addressing integration challenges. Techniques for managing large datasets beyond available RAM, employing the Parquet data format, and advanced fuzzy matching algorithms are explored. Additionally, it discusses leveraging SQL Server Language Extensions to overcome traditional Python and R limitations in Power BI. It also helps in crafting sophisticated visualizations using the Grammar of Graphics in both R and Python. This Power BI book will help you master data validation with regular expressions, import data from diverse sources, and apply advanced algorithms for transformation. You'll learn how to safeguard personal data in Power BI with techniques like pseudonymization, anonymization, and data masking. You'll also get to grips with the key statistical features of datasets by plotting multiple visual graphs in the process of building a machine learning model. The book will guide you on utilizing external APIs for enrichment, enhancing I/O performance, and leveraging Python and R for analysis. You'll reinforce your learning with questions at the end of each chapter.
Table of Contents (27 chapters)
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23
Other Books You May Enjoy
24
Index
1
Appendix 1: Answers
2
Appendix 2: Glossary

Correlation between numeric variables

The first thing we generally do to understand whether there is an association between two numeric variables is to plot them on the two Cartesian axes to obtain a scatterplot:

A graph with green dots  Description automatically generated

Figure 15.1: A simple scatterplot

Using a scatterplot, it is possible to identify three important characteristics of a possible association:

  • Direction: This can be positive (increasing), negative (decreasing), or not defined (no association found – or both increasing and decreasing at the same time). If the increment of one variable is in accordance with the increment of the other, the direction is positive; if the increment of one variable is in accordance with the decrement of the other, it is negative; otherwise, it is not defined:
A graph of negative direction  Description automatically generated

Figure 15.2: Direction types of the association

  • Form: This describes the general form that the association takes in its simplest sense. Obviously, there are many possible forms, but there...
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Extending Power BI with Python and R
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