Giving graphs a subtitle in matplotlib

Question

I want to give my graph a title in big 18pt font  then a subtitle below it in smaller 10pt font  How can I do this in matplotlib  It appears the title   function only takes one single string with a single fontsize attribute  There has to be a way to do this  but how

User · Answer

Just use TeX   This works        title r    Huge Big title     newline  tiny Small subtitle          EDIT  To enable TeX processing  you need to add the  usetex   True  line to matplotlib parameters   fig size    12  7 5  params     axes labelsize   8         text fontsize     6         legend fontsize   7         xtick labelsize   6         ytick labelsize   6         text usetex   True           lt -- There         figure figsize   fig size          rcParams update params    I guess you also need a working TeX distribution on your computer  All details are given at this page   http   matplotlib org users usetex html

User · Answer

Although this doesn t give you the flexibility associated with multiple font sizes  adding a newline character to your pyplot title   string can be a simple solution   plt title  Really Important Plot nThis is why it is important

User · Answer

As mentioned here  uou can use matplotlib pyplot text objects in order to achieve the same result  plt text x 0 5  y 0 94  s  quot My title 1 quot   fontsize 18  ha  quot center quot   transform fig transFigure  plt text x 0 5  y 0 88  s   quot My title 2 in different size quot   fontsize 12  ha  quot center quot   transform fig transFigure  plt subplots adjust top 0 8  wspace 0 3

User · Answer

I don t think there is anything built-in  but you can do it by leaving more space above your axes and using figtext   axes   1  1  8  7   figtext  5  9  Foo Bar   fontsize 18  ha  center   figtext  5  85  Lorem ipsum dolor sit amet  consectetur adipiscing elit  fontsize 10 ha  center     ha is short for horizontalalignment

User · Answer

This is a pandas code example that implements Floris van Vugt s answer  Dec 20  2010   He said    What I do is use the title   function for the subtitle and the suptitle   for the  main title  they can take different fontsize arguments   Hope that helps   import pandas as pd import matplotlib pyplot as plt  d     series a    pd Series  1   2   3    index   a    b    c            series b    pd Series  1   2   3   4    index   a    b    c    d     df   pd DataFrame d   title string    This is the title  subtitle string    This is the subtitle   plt figure   df plot kind  bar   plt suptitle title string  y 1 05  fontsize 18  plt title subtitle string  fontsize 10    Note  I could not comment on that answer because I m new to stackoverflow

User · Answer

The solution that worked for me is    use suptitle   for the actual title use title   for the subtitle and adjust it using the optional parameter y        import matplotlib pyplot as plt                     some code here             plt title  My subtitle  fontsize 16      plt suptitle  My title  fontsize 24  y 1      plt show     There can be some nasty overlap between the two pieces of text  You can fix this by fiddling with the value of y until you get it right

User · Answer

What I do is use the title   function for the subtitle and the suptitle   for the main title  they can take different fontsize arguments   Hope that helps

[matplotlib] Giving graphs a subtitle in matplotlib

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