Gnuplot: multiple plots in multiple windows

Question

I want to do multiple plots related to differents data columns of the same file but I want a new window for each plot. I don't want attached plots associated to the command set multiplot layout 1,2. The idea is represented by the following pseudocode:

>gnuplot

>plot "myfile.txt" u 1:4

>#make me plot another file without deleting the previous one i.e. open a new window on which data is plotted

>instructions I don't know

>plot "myfile.txt" u: ($3*$3) 

>#I obtain two windows

Answer 1

You don't write which terminal you are using. I understand you want to have two windows next to each other, and not two graph as file on disk. In gnuplot console check for example: help wxt. In case you want two files on disk you have to select another terminal, e.g.

set term pngcairo
set output 'myOutput1.png'
plot x
set output 'myOutput2.png'
plot x**2
set output

So with the interactive wxt terminal the following works for me:

Code:

### several terminals
reset session

set term wxt 1 size 500,400
plot sin(x)

set term wxt 2 size 500,300
plot cos(x)

set term wxt 3 size 300,200
plot x**2

### end of code

Result: