Assignment B4 Part A: Word Counts & Substance Use Data Analysis

Overview

This project contains two exercises from Part A of STAT 545B Assignment 4:

1. Exercise 1: Word frequency analysis of a Jane Austen book, excluding stopwords.
2. Exercise 3: Substance use data analysis and linear regression to predict abstinent days based on treatment procedures.

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Exercise 1: Word Frequency Analysis

We analyzed a Jane Austen novel (specifically Pride and Prejudice) from the janeaustenr R package, visualizing the most common words after removing stopwords using the tidytext package. The text was tokenized, stopwords were filtered out, and word frequencies were calculated and sorted.

• Book Source: Pride and Prejudice from janeaustenr

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Exercise 3: Substance Use Data Analysis & Linear Regression

Using the sud dataset, we built linear regression models to predict the number of abstinent days (ada_6) based on treatment procedures (nproc). The analysis was performed for different substance use subgroups.

• Data Source: OVtool Package
• Key Variables:
  • ada_6: Abstinent days at 6 months
  • nproc: Number of treatment procedures
  • subsgrps_n: Substance use subgroup (e.g., alcohol, opioids)

Repository Contents

• STAT 545B Assignment B4 Part A - Andrea Wong Koo.Rmd: R markdown file containing both exercises.
• STAT-545B-Assignment-B4-Part-A---Andrea-Wong-Koo.md: Markdown version of the Rmd file.
• STAT-545B-Assignment-B4-Part-A---Andrea-Wong-Koo_files: Folder with figures generated.

Repository Usage

Open either the .md or .Rmd file in RStudio to view or execute the analysis.