CODEWITHSUNDEEP
pythonmatplotlib
asongtoruin
asongtoruin

Reputation: 10359

Inconsistent alignment of title and suptitle

I'm trying to use both ax.set_title() and plt.suptitle() to incorporate a title and a subtitle to a graph, but the two seem to not share the same alignment. For example, the following:

import matplotlib.pyplot as plt

fig, ax = plt.subplots()

cats = ('One', 'Two')
vals = (12, 4) 

ax.barh(cats, vals, align='center')
plt.suptitle('Title')
ax.set_title('Title')
plt.show()

Gives us the following misaligned titles:

Misaligned titles with short y labels

How can I get these two titles to align properly? I thought it may be something to do with ax.title aligning to the axis and plt.suptitle aligning to the figure, but testing a much longer y label doesn't seem to affect the offset:

fig, ax = plt.subplots()

cats = ('One million tiny engines running at one hundred miles per hour', 'Two')
vals = (12, 4) 

ax.barh(cats, vals, align='center')
plt.suptitle('Title')
ax.set_title('Title')
plt.show()

Misaligned titles with long y label

Upvotes: 5

Views: 8322

Answers (3)

Jody Klymak
Jody Klymak

Reputation: 5913

If you really don't need subtitle

fig, ax = plt.subplots()

cats = ('One million tiny engines running at one hundred miles per hour', 'Two')
vals = (12, 4) 

ax.barh(cats, vals, align='center')
ax.set_title('Title\nTitle')
plt.show()

Upvotes: 0

soyapencil
soyapencil

Reputation: 629

matplotlib aligns suptitle to the figure, and title to the subplot. You can manually jiggle the suptitle using fig.subplotpars:

import matplotlib.pyplot as plt

fig, ax = plt.subplots()

cats = ('One', 'Two')
vals = (12, 4) 

# Mid point of left and right x-positions
mid = (fig.subplotpars.right + fig.subplotpars.left)/2

ax.barh(cats, vals, align='center')
plt.suptitle('Title',x=mid)
ax.set_title('Title')
plt.show()

Fixed title

Enjoy!

Upvotes: 14

J.Doe
J.Doe

Reputation: 434

I know this isn't the perfect answer and basically a repost of my comment, but here goes nothing:

fig, ax = plt.subplots()

cats = ('hour', 'Two')
vals = (12, 4) 
ax.barh(cats, vals, align='center')
plt.figtext(.5,.95,'Foo Bar', fontsize=18, ha='center')
plt.figtext(.5,.9,'lol bottom text',fontsize=10,ha='center')
plt.show()

You need to manually adjust the .95 and .9 values depending on the font sizes though.

Upvotes: 3

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