Multiple Plots in MATLAB

📊 Multiple Plots in MATLAB

This is useful for comparison, analysis, and visualization of related data.
MATLAB is developed by MathWorks.

🔹 Why Use Multiple Plots?

• Compare different datasets

• Visualize relationships clearly

• Save screen space

• Analyze multiple signals together

1️⃣ Multiple Plots Using hold on

Used to draw multiple graphs on the same axes.

🔸 Example

Output:
Sine and cosine curves on the same graph.

📌 hold on keeps the current plot, hold off releases it.

2️⃣ Multiple Plots Using plot() in One Command

Output:
Two curves plotted together.

3️⃣ Multiple Plots Using subplot()

subplot() divides the figure window into a grid.

🔸 Syntax

• m → rows

• n → columns

• p → plot number

🔸 Example: 2×2 Subplots

Output:
Four different plots in one window.

4️⃣ Combining subplot() with Labels

5️⃣ Using tiledlayout (Modern MATLAB – Optional)

A newer and cleaner alternative to subplot().

📌 Preferred in new MATLAB versions.

⚠️ Important Notes

• hold on → same axes

• subplot() → separate axes

• Use legend() for clarity

• Label each plot properly

🎯 Interview Questions: Multiple Plots in MATLAB

🔹 Q1. How do you plot multiple lines on the same graph?

Answer:
Using hold on or a single plot() command.

🔹 Q2. What does subplot(2,2,3) mean?

Answer:
A 2×2 grid, third plot position.

🔹 Q3. Difference between hold on and subplot()?

Answer:
hold on → same axes
subplot() → different axes

🔹 Q4. Which function adds labels to multiple plots?

Answer:
xlabel(), ylabel(), title()

🔹 Q5. What is tiledlayout?

Answer:
A modern method to manage multiple plots neatly.

🔹 Q6. Can multiple plots be shown in one figure?

Answer:
Yes, using subplot() or hold on.

✅ Summary

• Multiple plots improve comparison

• hold on overlays graphs

• subplot() divides the window

• Essential for data analysis & reporting