[Solved] You want to create an interactive plot where clicking inside the plot area prints the nearest data point's coordinates... Which approach correctly combines cursor event handling and data lookup? | Matplotlib

Matplotlib - Interactive Features

You want to create an interactive plot where clicking inside the plot area prints the nearest data point's coordinates from a scatter plot. Which approach correctly combines cursor event handling and data lookup?

AUse <code>plt.scatter()</code> with a parameter to automatically print nearest point on click

BUse 'motion_notify_event' to print coordinates continuously without checking points

CConnect 'key_press_event' to print data points when any key is pressed

DConnect 'button_press_event' to a function that calculates distances from click to all points and prints nearest

Step-by-Step Solution

Solution:

Step 1: Identify the correct event for mouse clicks
Use 'button_press_event' to detect mouse clicks inside the plot.
Step 2: Implement logic to find nearest data point
Calculate distances from click position to all scatter points, then print the closest one.
Step 3: Verify other options
'motion_notify_event' prints continuously, 'key_press_event' is unrelated, and plt.scatter has no auto-print feature.
Final Answer:
Connect 'button_press_event' to a function that calculates distances from click to all points and prints nearest -> Option D
Quick Check:
Click event + nearest point logic = A [OK]

Quick Trick: Use click event plus distance check to find nearest point [OK]

Common Mistakes:

Using motion event instead of click for selection
Expecting built-in auto-print in scatter
Confusing key press with mouse click events

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More Matplotlib Quizzes

Which approach correctly combines cursor event handling and data lookup?

Step 1: Identify the correct event for mouse clicks

Step 2: Implement logic to find nearest data point

Step 3: Verify other options

Final Answer:

Quick Check:

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