Matplotlib doesn't save suptitle

Question

Using matplotlib 1.4.3 and the following code, the figure and suptitle displays correctly, however upon saving, the suptitle is removed.

true_vals = [1,2,3]

f, ax_arr = plt.subplots(1,3,figsize=(15,5))
ax_arr = ax_arr.reshape(-1)
f.suptitle("This is my suptitle\nThis is the second line", fontsize=20, y=1.1) 
# y is set to 1.1 to keep the second line in the suptitle from hitting the top of the subplots.

for idx, i in enumerate(true_vals):
    ax_arr[idx].boxplot(data[:,idx], labels=i)

f.savefig('suptitle_test.pdf', dpi=f.dpi)

AGS · Accepted Answer · 2015-10-29 12:52:16Z

11

Using the advice given here,

adding the following to the savefig command will produce a tight plot, keeping the suptitle in the saved figure:

true_vals = [1,2,3]

f, ax_arr = plt.subplots(1,3,figsize=(15,5))
ax_arr = ax_arr.reshape(-1)
my_suptitle = f.suptitle("This is my suptitle\nThis is the second line", fontsize=20, y=1.1) 
# y is set to 1.1 to keep the second line in the suptitle from hitting the top of the subplots.

for idx, i in enumerate(true_vals):
    ax_arr[idx].boxplot(data[:,idx], labels=i)

f.savefig('suptitle_test.pdf', dpi=f.dpi, bbox_inches='tight',bbox_extra_artists=[my_suptitle])

answered Oct 29, 2015 at 12:52

AGS

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1 Comment

Karel Marik Over a year ago

Just to stress the bbox_inches='tight' argument must be used otherwise the figure will be rendered without suptitle. See explanation in the matplotlib reference matplotlib.org/stable/api/_as_gen/…

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