CODEWITHSUNDEEP
pythonmatplotlibseaborngridlines
8one6
8one6

Reputation: 13768

Add minor gridlines

But I can't seem to figure out how to show minor gridlines in my plots with a seaborn style.

import numpy as np
import matplotlib.pyplot as plt
import seaborn as sbn

x = np.linspace(0, 2 * np.pi, 100)
y = np.sin(x)

fig, ax = plt.subplots(1, 1)
ax.scatter(x, y)

ax.grid(b=True, which='major')
ax.grid(b=True, which='minor')

enter image description here

Any thoughts here? Also any thoughts on how to adjust the style of the Seaborn gridlines that do show up...in particular, I'd love to make them narrower.

Upvotes: 35

Views: 34166

Answers (2)

8one6
8one6

Reputation: 13768

Wound up combining CT Zhu's answer with tcaswell's hint:

import numpy as np
import matplotlib as mpl
import matplotlib.pyplot as plt
import seaborn as sbn

x = np.linspace(0, 2 * np.pi, 100)
y = np.sin(x)

fig, ax = plt.subplots(1, 1)

ax.scatter(x, y)
ax.get_xaxis().set_minor_locator(mpl.ticker.AutoMinorLocator())
ax.get_yaxis().set_minor_locator(mpl.ticker.AutoMinorLocator())
ax.grid(b=True, which='major', color='w', linewidth=1.0)
ax.grid(b=True, which='minor', color='w', linewidth=0.5)

enter image description here

Upvotes: 46

CT Zhu
CT Zhu

Reputation: 54330

That's because the minor ticks are not yet defined, so we need to add for example:

ax.set_xticks(np.arange(0,8)-0.5, minor=True)
ax.set_yticks([-1.25, -0.75, -0.25,0.24,0.75,1.25], minor=True)

enter image description here

Upvotes: 11

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