How to set the ylabel horizontal in gnuplot

Question

how to set the ylabel horizontal in gnuplot, like this, right ylabel style I want. While I use

set ylabel "Episode Duration (seconds)"

and

set ylabel "Episode Duration (seconds)" rotate by 90

the picture I get are like this my plot

Answer 1

The angle for a horizontal label is 0°. This should work:

set lmargin 15
set ylabel "Episode\n Duration\n (seconds)" offset 2,1 rotate by 0
plot sin(x)

Note that I had to increase the left margin so that the ylabel fits on the picture. And I have shifted the label.