Major and minor ticks in Matplotlib - Interactive Code Practice

Practice - 5 Tasks

1fill in blank

easy

Complete the code to set major ticks on the x-axis every 2 units.

Matplotlib

import matplotlib.pyplot as plt
from matplotlib.ticker import AutoLocator, FixedLocator, MaxNLocator, MultipleLocator
fig, ax = plt.subplots()
ax.plot([1, 2, 3, 4, 5])
ax.xaxis.set_major_locator([1](2))
plt.show()

Drag options to blanks, or click blank then click option'

AAutoLocator

BMaxNLocator

CFixedLocator

DMultipleLocator

Attempts:

3 left

💡 Hint

Common Mistakes

Using MaxNLocator which tries to choose a maximum number of ticks but not fixed intervals.

Using FixedLocator without specifying exact tick positions.

The MultipleLocator sets ticks at multiples of the given base, here 2.

2fill in blank

medium

Complete the code to set minor ticks on the y-axis every 0.5 units.

Matplotlib

import matplotlib.pyplot as plt
from matplotlib.ticker import AutoLocator, FixedLocator, MaxNLocator, MultipleLocator
fig, ax = plt.subplots()
ax.plot([0.1, 0.4, 0.9, 1.2, 1.8])
ax.yaxis.set_minor_locator([1](0.5))
plt.show()

Drag options to blanks, or click blank then click option'

AMultipleLocator

BMaxNLocator

CFixedLocator

DAutoLocator

Attempts:

3 left

💡 Hint

Common Mistakes

Using MaxNLocator which does not guarantee fixed intervals.

Not setting minor ticks locator at all.

MultipleLocator is used to set ticks at fixed intervals, here 0.5 for minor ticks.

3fill in blank

hard

Fix the error in the code to correctly set major ticks at 1, 3, and 5 on the x-axis.

Matplotlib

import matplotlib.pyplot as plt
from matplotlib.ticker import AutoLocator, FixedLocator, MaxNLocator, MultipleLocator
fig, ax = plt.subplots()
ax.plot([10, 20, 30, 40, 50])
ax.xaxis.set_major_locator([1]([1, 3, 5]))
plt.show()

Drag options to blanks, or click blank then click option'

AMultipleLocator

BFixedLocator

CMaxNLocator

DAutoLocator

Attempts:

3 left

💡 Hint

Common Mistakes

Using MultipleLocator which expects a single base number, not a list.

Using MaxNLocator which chooses ticks automatically.

FixedLocator is used to set ticks at specific positions given as a list.

4fill in blank

hard

Fill both blanks to set major ticks every 1 unit and minor ticks every 0.2 units on the y-axis.

Matplotlib

import matplotlib.pyplot as plt
from matplotlib.ticker import AutoLocator, FixedLocator, MaxNLocator, MultipleLocator
fig, ax = plt.subplots()
ax.plot([0, 1, 2, 3, 4])
ax.yaxis.set_major_locator([1](1))
ax.yaxis.set_minor_locator([2](0.2))
plt.show()

Drag options to blanks, or click blank then click option'

AMultipleLocator

BMaxNLocator

CFixedLocator

DAutoLocator

Attempts:

3 left

💡 Hint

Common Mistakes

Using different locator types for major and minor ticks.

Using MaxNLocator which does not guarantee fixed intervals.

MultipleLocator is used for both major and minor ticks to set fixed intervals.

5fill in blank

hard

Fill all three blanks to create a dictionary of minor tick positions for x-axis where keys are the tick positions and values are their squares, but only for ticks greater than 2.

Matplotlib

import matplotlib.pyplot as plt
from matplotlib.ticker import AutoLocator, FixedLocator, MaxNLocator, MultipleLocator
fig, ax = plt.subplots()
ax.xaxis.set_minor_locator(MultipleLocator(1))
minor_ticks = { [1] : [2] for [3] in ax.xaxis.get_minor_locator().tick_values(0, 5) if [3] > 2 }
print(minor_ticks)

Drag options to blanks, or click blank then click option'

Atick

Btick**2

Attempts:

3 left

💡 Hint

Common Mistakes

Using different variable names inconsistently.

Not squaring the tick values for dictionary values.

The dictionary comprehension uses tick as the key and tick**2 as the value, iterating over minor tick positions.