Matplotlib x axis date formatting ConciseDateFormatter increase font size of minor tick year

user_2587904 0
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How can I increase the font size of the year? The basic x-ticks are increased, but not the year.

enter image description here

%pylab inline

import pandas as pd
import matplotlib.dates as mdates
import matplotlib.ticker as mtick


df = pd.DataFrame({'dt':['2020-01-01', '2020-01-10'], 'foo':[1,3]})
df['dt'] = pd.to_datetime(df.dt)
df = df.set_index(['dt'])

plt.figure(figsize = (4, 4))

aut_locator = mdates.AutoDateLocator(minticks=3, maxticks=7)
aut_formatter = mdates.ConciseDateFormatter(aut_locator)

ax = df.foo.plot()
ax.xaxis.set_major_locator(aut_locator)
ax.xaxis.set_major_formatter(aut_formatter)
ax.set_xlabel('')
plt.xticks(fontsize=29)
plt.show()
date-formatting matplotlib python
1 Answers

That text on the lower right is the "axes offset". You can access it as ax.xaxis.get_offset_text():

df = pd.DataFrame({'dt':['2020-01-01', '2020-01-10'], 'foo':[1,3]})
df['dt'] = pd.to_datetime(df.dt)
df = df.set_index(['dt'])

plt.figure(figsize = (4, 4))

aut_locator = mdates.AutoDateLocator(minticks=3, maxticks=7)
aut_formatter = mdates.ConciseDateFormatter(aut_locator)

ax = df.foo.plot()
ax.xaxis.set_major_locator(aut_locator)
ax.xaxis.set_major_formatter(aut_formatter)
ax.set_xlabel('')
plt.xticks(fontsize=29)
ax.xaxis.get_offset_text().set_size(29)
plt.tight_layout()
plt.show()

enter image description here

user_13560000
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