Plot Formatting & Labels in MATLAB

🎨 Plot Formatting & Labels in MATLAB

Proper formatting is essential for reports, presentations, exams, and research papers.
MATLAB is developed by MathWorks.

🔹 Why Plot Formatting Is Important?

• Improves readability

• Makes graphs self-explanatory

• Helps in comparison & interpretation

• Required in academic & professional work

1️⃣ Adding Title and Axis Labels

📌 Always label axes to explain what data represents.

2️⃣ Adding Legend

Used when multiple plots are present.

3️⃣ Changing Line Style, Color & Marker

🔸 Format Breakdown

• r → red color

• -- → dashed line

• o → circle marker

• LineWidth → thickness of line

4️⃣ Grid On / Off

or

📌 Grid improves value estimation.

5️⃣ Axis Control

📌 Format:
axis([xmin xmax ymin ymax])

6️⃣ Font Size & Style Customization

7️⃣ Adding Text on Plot

📌 Useful for highlighting important points.

8️⃣ Marker Customization

9️⃣ Background & Figure Control

🔟 Complete Formatted Plot Example

⚠️ Important Notes

• Use clear titles & labels

• Avoid overcrowding the plot

• Legends should not hide data

• Consistent formatting improves clarity

🎯 Interview Questions: Plot Formatting & Labels

🔹 Q1. Which functions are used to label axes?

Answer: xlabel() and ylabel()

🔹 Q2. How do you add a title to a plot?

Answer: Using title()

🔹 Q3. What is the use of legend()?

Answer: To identify multiple plots.

🔹 Q4. How do you turn grid lines on?

Answer: Using grid on

🔹 Q5. How do you change line width?

Answer: Using 'LineWidth' property.

🔹 Q6. Which function is used to add text inside a plot?

Answer: text()

🔹 Q7. What does axis() do?

Answer: Controls axis limits.

✅ Summary

• Formatting makes plots professional

• Labels, title, legend are essential

• Grid & axis improve readability

• Required for exams, reports & research