gnuplot: subtitle with smaller fontsize

Question

Does somebody know how you can insert a subtitle with a smaller fontsize in gnuplot?

Currently, the way I create a subtitle is by using \n in the title. Additionally, I would like the subtitle to have a smaller fontsize.

Thanks in advance.

Answer 1

This works for the postscript terminal at least (for some reason x11 didn't want to scale my font. Perhaps it is a bug...):

set term <whatever> enhanced
set output "<whatever.ext>"
set title "Big Title\n{/*0.5 subtitle}"

The {/*0.5} scales the fontsize to be half of the current active fontsize. You can also specify fontsizes explicitly:

set title "{/=20 Big} Medium {/=5 Small}"

---

Or you can change the font for a region of text:

set title "{/Helvetica foo} {/Symbol G}"

These forms can be combined to change the font and size in a particular region of text as well:

set title "This is a big gamma {/Symbol=20 G}"

For more information about enhanced text, see help enhanced.

Answer 2

You can use label. You have to experiment a bit with its proper placement by at:

set title "Big Title"
set label "Subtitle" at screen 0.5, 0.9 font "Arial,8"
plot sin(x)