Debugging in R

Introduction

R provides tools for debugging code. Understanding these helps identify and fix errors.

Basic Debugging

# Print statements
print(x)
cat("Debug: ", x, "\n")

# Stop
stop("Error message")
warning("Warning message")
message("Info message")

Browser

# Enter browser mode
browser()

# Conditional browser
browser(condition = x > 10)

Debug Functions

# Debug function
debug(function_name)

# Undebug
undebug(function_name)

# Traceback
traceback()

# Error handler
options(error = traceback)
options(error = recover)

Summary

Use debugging tools to find issues. Browser and traceback are most useful.