Book Image

Extending Power BI with Python and R

By : Luca Zavarella
Book Image

Extending Power BI with Python and R

By: Luca Zavarella

Overview of this book

Python and R allow you to extend Power BI capabilities to simplify ingestion and transformation activities, enhance dashboards, and highlight insights. With this book, you'll be able to make your artifacts far more interesting and rich in insights using analytical languages. You'll start by learning how to configure your Power BI environment to use your Python and R scripts. The book then explores data ingestion and data transformation extensions, and advances to focus on data augmentation and data visualization. You'll understand how to import data from external sources and transform them using complex algorithms. The book helps you implement personal data de-identification methods such as pseudonymization, anonymization, and masking in Power BI. You'll be able to call external APIs to enrich your data much more quickly using Python programming and R programming. Later, you'll learn advanced Python and R techniques to perform in-depth analysis and extract valuable information using statistics and machine learning. You'll also understand the main statistical features of datasets by plotting multiple visual graphs in the process of creating a machine learning model. By the end of this book, you’ll be able to enrich your Power BI data models and visualizations using complex algorithms in Python and R.
Table of Contents (22 chapters)
1
Section 1: Best Practices for Using R and Python in Power BI
5
Section 2: Data Ingestion and Transformation with R and Python in Power BI
11
Section 3: Data Enrichment with R and Python in Power BI
17
Section 3: Data Visualization with R in Power BI

Implementing a circular barplot in Power BI

As you have already seen in the previous chapters, Power BI is capable of rendering graphs developed with ggplot2 using R visuals. Therefore, whatever the complexity of the graph created using ggplot2, you can be sure that Power BI handles it well.

To create a circular barplot in Power BI, proceed as follows:

  1. Make sure that Power BI Desktop is referencing the version of CRAN R dedicated to R visuals in Options.
  2. Click on Get Data, Text/CSV, and then Connect.
  3. Select the Scores.csv file found in the Chapter15 folder and click Open.
  4. You will see a preview of the CSV file. Make sure to select 65001: Unicode (UTF-8) as File Origin. This way, special characters in speaker names will be displayed correctly. Then, click on Load.
  5. Click on the R Visual icon in the Visualizations panel, enable it, and then resize the visual as all the available canvas.
  6. Keeping the R visual selected, expand the Scores table under the Fields...