How to display Chinese title?

[run27017]

It seems cannot display Chinese well, following is the test code:

import mplfinance as mpf

mpf.plot(df, title="如何显示中文")

df is the stock trading code looks like:

                     open   high    low     close  pre_close  change  pct_chg        vol        amount
date
2021-05-24  23.48  23.60  23.19  23.48      23.49   -0.01  -0.0426  343935.63  8.060922e+05
2021-05-25  23.54  24.73  23.45  24.60      23.48    1.12   4.7700  972374.62  2.363146e+06
2021-05-26  24.64  25.12  24.50  25.01      24.60    0.41   1.6667  919263.78  2.286540e+06
2021-05-27  24.91  25.16  24.52  24.79      25.01   -0.22  -0.8796  504091.36  1.246712e+06
2021-05-28  24.68  24.71  24.16  24.50      24.79   -0.29  -1.1698  492400.73  1.200523e+06

My machine is openSUSE Tumbleeweed, and the python version is 3.8.10. The version of mpf lib is 0.12.7a17.

[DanielGoldfarb]

Ehen mplfinance applies its styles, it first appies a matplotlib style and these matplotlib styles modify rcParams.

The way to make this work would be to include the desired font.family in the style. For example, suppose you wanted to use style 'yahoo' , but with Chinese characters. You should be able to do so like this:

rcpdict = { 'font.family' : 'Noto Sans CJK SC' }
s = mpf.make_mpf_style(base_mpf_style='yahoo',rc=rcpdict)
mpf.plot(data,...,style=s)

Please let me know if that works for you.
Thank you. All the best. --Daniel

[run27017]

But it doesn't work:

rcpdict = { 'font.family' : 'Noto Sans CJK SC' }
s = mpf.make_mpf_style(base_mpf_style='yahoo',rc=rcpdict)
mpf.plot(df, title="如何显示中文", style=s)

About the figure:

What does 'Noto Sans CJK SC' mean? Is it related to specific machine or operating system?

[run27017]

I have solved the issue through adjusting the font.family:

rcpdict = { 'font.family' : ['AR PL UKai CN', 'sans-serif']}

The string 'Noto Sans CJK SC' should be a font name but my system doesn't have. So, thank you for your prompt, Daniel. You're very nice.

At last, for any other who is bored by this issue, you should apply the style like Daniel does. And the font.family should be changed to machine related one. You are able to list the Chinese font families using:

$ fc-list :lang=zh family

[DanielGoldfarb]

@run27017
Thank you very much for adding the details about the solution. Have a great day!