R Escape Characters

🔤 R Escape Characters

In R, escape characters are special character sequences used inside strings to represent characters that are hard to type, invisible, or have special meaning (like new lines, tabs, quotes, etc.).

👉 Escape characters always start with a backslash \.

1️⃣ What are Escape Characters?

Escape characters allow you to:

• Insert new lines

• Add tabs

• Print quotes inside strings

• Handle special symbols

📌 Mainly used with character strings.

2️⃣ Common Escape Characters in R ⭐

3️⃣ New Line \n ⭐

Output

4️⃣ Tab Space \t

Output

5️⃣ Printing Quotes Inside Strings ⭐

Double Quote

Single Quote

6️⃣ Backslash \\

📌 Single \ is not allowed directly → must use \\.

7️⃣ Carriage Return \r

📌 Moves cursor to beginning of the line.

8️⃣ Escape Characters with print() vs cat() ⭐

Output:

Output:

📌 cat() interprets escape characters
📌 print() shows them as text

9️⃣ Unicode Escape Sequences ⭐

😊 (Smiley)

📌 Useful for symbols & emojis.

🔟 Common Mistakes ❌

❌ Using single \ instead of \\
❌ Expecting print() to format text
❌ Forgetting escape before quotes
❌ Confusing \n with /n

📌 Interview Questions & MCQs

Q1. Which escape character is used for new line?

A) \t
B) \n
C) \r
D) \b

✅ Answer: B

Q2. How to print a backslash in R?

A) \
B) //
C) \\
D) \b

✅ Answer: C

Q3. Which function interprets escape characters?

A) print()
B) show()
C) cat()
D) display()

✅ Answer: C

Q4. What does \t represent?

A) New line
B) Tab space
C) Backslash
D) Quote

✅ Answer: B

Q5. Output of:

A) A\nB
B) AB
C)

D) Error

✅ Answer: C

🔥 Real-Life Use Cases

✔ Formatting output
✔ Printing tables
✔ File paths
✔ Logs and reports
✔ User-friendly messages

✅ Summary

• Escape characters start with \

• Used for formatting strings

• \n, \t, \\, \" are most common

• cat() interprets escapes, print() does not

• Important for R exams, interviews & data output