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This tutorial will show you how we can set the grid spacing in a Matplotlib plot and apply different styles to the major and minor grids.

We have to use matplotlib.pyplot.grid()the function to display the grid.

import matplotlib.pyplot as plt

plt.figure(figsize=(8, 6))
plt.xlim(0, 10)
plt.ylim(0, 10)
plt.grid()
plt.title("Plot with Grids")
plt.show()

Output:

It shows a graph with a grid, where the grid spacing is based on the tick spacing. We can tickschange the grid spacing by changing the tick spacing.

ticksChange the Matplotlib plot grid spacing by changing the spacing of

import matplotlib.pyplot as plt

fig, axes = plt.subplots(nrows=2, ncols=1, figsize=(8, 6))

axes[0].set_xlim(0, 10)
axes[0].set_ylim(0, 10)
axes[0].set_title("Subplot 1")
axes[0].grid()

axes[1].set_xlim(0, 8)
axes[1].set_ylim(0, 8)
axes[1].set_title("Subplot 2")
axes[1].grid()

plt.show()

Output:

It creates a figure with two subplots. We set different tick spacing for the two subplots. It can be clearly seen from the figure that the grid spacing is ticksmaintained according to the spacing of .

import numpy as np
import matplotlib.pyplot as plt

fig, axes = plt.subplots(nrows=2, ncols=1, figsize=(8, 6))

major_ticks_top = np.linspace(0, 20, 6)
minor_ticks_top = np.linspace(0, 20, 21)

major_ticks_bottom = np.linspace(0, 15, 6)

axes[0].set_xticks(major_ticks_top)
axes[0].set_yticks(major_ticks_top)
axes[0].set_xticks(minor_ticks_top, minor=True)
axes[0].set_yticks(minor_ticks_top, minor=True)
axes[0].set_title("Subplot 1")
axes[0].grid(which="major", alpha=0.6)
axes[0].grid(which="minor", alpha=0.3)

axes[1].set_xticks(major_ticks_bottom)
axes[1].set_yticks(major_ticks_bottom)
axes[1].set_title("Subplot 2")
axes[1].grid()

plt.tight_layout()
plt.show()

Output:

It shows a Matplotlib figure with two subplots. Subplot 1The subplot on top has a small grid and a large grid. The small grid has a spacing of 1 unit and is represented by dark lines. Similarly, the location of the major grid, with a spacing of 5 units, is represented by lighter lines.

We use to represent small ticks in the set_yticks()or functions. We use to select the grid corresponding to ticks and use to select the grid corresponding to ticks.set_xticks()minor=Truewhich="major"majorwhich="major"minor

grid()The parameter in the method alphais used to set the intensity of the grid lines. alphaThe larger the value, the darker the grid lines.