Project Management With RStudio

Adapted from Software Carpentry

Overview

Questions:

• How can I organize my R projects?

Objectives:

• Create self-contained projects in RStudio
• Organize project files effectively

Why Project Structure Matters

Poor organization mixes files, makes it hard to find things, and complicates sharing. Good structure:

• Protects data integrity
• Makes collaboration easier
  
• Aids reproducibility
• Helps you find what you need

Creating a Project

RStudio’s project feature creates a self-contained, reproducible workspace:

Challenge 1: Create an RStudio Project

1. Click File → New Project
2. Click “New Directory”
3. Click “New Project”
4. Name your project (e.g., “my_project”)
5. Check “Create a git repository” if available
6. Click “Create Project”

A .Rproj file will be created. Double-click it to open the project and set R’s working directory to the project folder.

Best Practices: Data is Read-Only

Raw data is valuable and time-consuming to collect. Treat it as read-only to ensure you know the original source and all modifications made.

Best Practices: Data Cleaning

Store preprocessing scripts separately from raw data. Keep cleaned data in a separate output folder to avoid confusion.

Best Practices: Output is Disposable

Scripts should regenerate all outputs. Organize outputs by analysis type in subdirectories for easier management later.

Best Practices: Separate Functions

Create separate folders for: - Reusable functions (used across analyses) - Analysis scripts (project-specific workflows)

Working Directory

Check your working directory:

getwd()        # check current directory
setwd("path")  # change directory

Challenge 2: Working Directories

1. Type getwd() in the console
2. Use Files pane to navigate to the data folder
3. Change directory: setwd("data")
4. Check new directory: getwd()
5. Return: setwd("..")

Key Points

• Use RStudio to create and manage projects with consistent layout
• Treat raw data as read-only
• Treat generated output as disposable
• Separate function definition and application