Diverging bar charts in Matplotlib - Interactive Code Practice

Practice - 5 Tasks

1fill in blank

easy

Complete the code to import the matplotlib plotting library.

Matplotlib

import [1] as plt

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Aseaborn

Bnumpy

Cpandas

Dmatplotlib.pyplot

Attempts:

3 left

💡 Hint

Common Mistakes

Importing the wrong library like numpy or pandas.

Forgetting to import pyplot specifically.

We import matplotlib.pyplot as plt to create plots.

2fill in blank

medium

Complete the code to create a horizontal bar chart using matplotlib.

Matplotlib

plt.barh([1], values, color=colors)

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Avalues

Bcategories

Ccolors

Drange(len(values))

Attempts:

3 left

💡 Hint

Common Mistakes

Passing values instead of categories as the first argument.

Using bar instead of barh for horizontal bars.

The barh function needs the categories on the y-axis.

3fill in blank

hard

Fix the error in the code to center the bars around zero for diverging values.

Matplotlib

plt.barh(categories, [1], color=colors)

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Avalues - values.mean()

Bvalues - 0.5

Cvalues

D-values

Attempts:

3 left

💡 Hint

Common Mistakes

Using raw values without centering.

Subtracting a fixed number instead of the mean.

Subtracting the mean centers the bars around zero for diverging charts.

4fill in blank

hard

Fill both blanks to create a color list that colors positive values green and negative values red.

Matplotlib

colors = ['green' if val [1] 0 else 'red' for val in [2]]

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A>

B<

Cvalues

Dcategories

Attempts:

3 left

💡 Hint

Common Mistakes

Using the wrong comparison operator.

Using categories instead of values for color assignment.

We check if each value is greater than zero to assign green, else red.

5fill in blank

hard

Fill all three blanks to add labels and a title to the diverging bar chart.

Matplotlib

plt.xlabel('[1]')
plt.ylabel('[2]')
plt.title('[3]')

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AScore

BCategory

CDiverging Bar Chart Example

DValue

Attempts:

3 left

💡 Hint

Common Mistakes

Mixing up x and y axis labels.

Using unclear or missing titles.

Labels describe the x-axis as 'Value', y-axis as 'Category', and the chart has a descriptive title.