MATLAB - 2D Plotting
What will the legend display after running this code?
x = 1:3;
y1 = [2 4 6];
y2 = [1 3 5];
plot(x, y1, x, y2);
legend('Line A', 'Line B');
What will the legend display after running this code?
medium📝 Predict Output Q5 of 15
Step-by-Step Solution
Solution:
Step 1: Understand plot with multiple lines
plot(x, y1, x, y2) plots two lines: first y1, then y2.Step 2: Match legend labels to plotted lines
legend('Line A', 'Line B') assigns 'Line A' to first line (y1), 'Line B' to second line (y2).Final Answer:
Legend with 'Line A' for y1 and 'Line B' for y2 -> Option AQuick Check:
Legend order matches plot order = 'Line A' then 'Line B' [OK]
Quick Trick: Legend labels follow the order of plotted lines [OK]
Common Mistakes:
- Swapping legend labels order
- Forgetting legend() call
- Syntax errors in legend()
Master "2D Plotting" in MATLAB
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