Controlling the Appearance of Your Plots
Gnuplot contains many commands to help you refine the details of your plot. Here is a brief list, grouped by function.
Choosing an output device
Setting the axes
Setting the box size and shape
Setting plot and other labels
Setting point and line styles
Some other useful commands are
clear
Clear the display.
pause wait-time "message"
Print a message and wait the specified number of seconds. If
wait-time
is negative, wait until carriage-return is pressed before continuing.
replot
Repeat the previous
plot
or
splot
command with new parameter settings.
reset
Restore all options to their default settings.
show <option>
Show the value of any quantity that can be set.