Vertical bar chart with plt.bar in Matplotlib - Cheat Sheet & Quick Revision

Recall & Review

beginner

What function in matplotlib is used to create a vertical bar chart?

The plt.bar() function is used to create vertical bar charts in matplotlib.

beginner

In plt.bar(x, height), what do the parameters x and height represent?

x represents the positions of the bars on the x-axis, and height represents the height of each bar.

beginner

How can you add labels to the x-axis and y-axis in a vertical bar chart?

Use plt.xlabel('label') for the x-axis and plt.ylabel('label') for the y-axis to add labels.

beginner

What does the plt.show() function do after creating a bar chart?

plt.show() displays the created bar chart in a window or inline if using a notebook.

beginner

How can you change the color of the bars in a vertical bar chart?

You can change the color by passing the color parameter to plt.bar(), e.g., plt.bar(x, height, color='red').

Which matplotlib function creates vertical bars?

A plt.bar()

B plt.plot()

C plt.scatter()

D plt.hist()

plt.bar() is used for vertical bar charts.

In plt.bar(x, height), what does height control?

A Bar width

B Bar color

C Bar position

D Bar height

height sets how tall each bar is.

How do you display the bar chart after creating it?

A plt.show()

B plt.draw()

C plt.display()

D plt.render()

plt.show() displays the chart.

Which parameter changes the bar color in plt.bar()?

A style

B color

C shade

D fill

Use color to set bar colors.

What does x represent in plt.bar(x, height)?

A Bar heights

B Bar colors

C Bar positions on x-axis

D Bar widths

x sets the horizontal positions of bars.

Explain how to create a simple vertical bar chart using matplotlib's plt.bar().

Think about what you need to tell matplotlib to draw bars and then show the chart.

Describe how to customize the color and labels of a vertical bar chart in matplotlib.

Consider how to make the chart clearer and more colorful.