Multiple font sizes in plot title

Question

I'm plotting in an IPython IDE using Matplotlib.pyplot and added a title with:

plt.title('Mean WRFv3.5 LHF\n(September 16 - October 30, 2012)', fontsize=40)

However, I want the first line to be size 40 and the second line to be size 18. Is that possible in matplotlib? I saw the LaTeX use of \tiny and \Huge, but would like more control.

Answer 1

Try:

import matplotlib.pyplot as plt

plt.rc('text', usetex=True)
plt.title(r'\fontsize{30pt}{3em}\selectfont{}{Mean WRFv3.5 LHF\r}{\fontsize{18pt}{3em}\selectfont{}(September 16 - October 30, 2012)}')

plt.show()

That \r might want to be a \n on your system.

I used Joel's answer to address your question.

Answer 2

Not sure if this is what you want, but you may add a suptitle or text and set at different fontsize like this:

plt.title('Mean WRFv3.5 LHF\n', fontsize=40)
plt.suptitle('(September 16 - October 30, 2012)\n', fontsize=18)
plt.text(0.5, 1, 'the third line', fontsize=13, ha='center')

Hope this helps.