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Modern R Programming Cookbook

You're reading from   Modern R Programming Cookbook Recipes to simplify your statistical applications

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Product type Paperback
Published in Oct 2017
Publisher Packt
ISBN-13 9781787129054
Length 236 pages
Edition 1st Edition
Languages
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Author (1):
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Jaynal Abedin Jaynal Abedin
Author Profile Icon Jaynal Abedin
Jaynal Abedin
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Toc

Table of Contents (10) Chapters Close

Preface 1. Installing and Configuring R and its Libraries 2. Data Structures in R FREE CHAPTER 3. Writing Customized Functions 4. Conditional and Iterative Operations 5. R Objects and Classes 6. Querying, Filtering, and Summarizing 7. R for Text Processing 8. R and Databases 9. Parallel Processing in R

Pre-processing text data for topic modeling and sentiment analysis

Sentiment analysis and topic modeling are one of the important applications of text mining. Also, in the medical field, biomedical text mining plays an important role in discovering new drugs, side effect, and much more. Before performing the analysis, it is obvious to do pre-processing of the text data. In this recipe, you will learn to do pre-processing to prepare the text data for text mining applications.

Getting ready

Suppose you want to perform topic modeling of the abstract extracted from PubMed by doing a literature search using "Deep Learning" as keyword. The objective is to see what the possible topics and subject areas are where the deep...

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