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Coloring student scores bar graph

The school board was well-pleased with your previous plot, but they are wondering if there is a way for you to visually identify good and bad performers.

This would be a great opportunity to utilize color, specifically a color scale. You think a scale from red (worst marks) to green (good marks) would be great.

Part of your previous code to create the student scores bar chart has been provided.

The student_scores DataFrame is also available. You can print it out and inspect it in the console.

This exercise is part of the course

Introduction to Data Visualization with Plotly in Python

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Exercise instructions

  • Create a color scale list from red (255, 0, 0) to green (3, 252, 40).
  • Set the color argument to the appropriate numerical column.
  • Use my_scale as the color scale for the plot.

Hands-on interactive exercise

Have a go at this exercise by completing this sample code.

# Create your own continuous color scale
my_scale = ["rgb(____)", "rgb(____)"]

# Create the bar plot
fig = px.bar(data_frame=student_scores, 
             x="student_name", y="score", title="Student Scores by Student",
             # Set the color variable and scale
             color="____",
             color_continuous_scale=____
             )

# Show the plot
fig.show()
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