[Gnuplot-info] how to adjust legend font size?

[Jon <dev...@gm...>]

use the command

p '***.txt' u 1:2 w d title 'kljlkjf'

but how to adjust the title size to bigger?

It seems set key does not work, (would not recognize font option, don't know
why, version 4.2), it seems no font size control on the title text in the
plot statement, what else can I think of ... Thanks!