1. The problem statement, all variables and given/known data Download the file xxx.dat. Create a gnuplot "macro" lab03.gpl which, when loaded by gnuplot will do the following: - create an output postscript file lab03.ps - make a plot of the contents of xxx.dat, for x-axis (column 1) values between -0.5 and 3.5 and y-axis (column 2) values between -0.1 and 1.1, in the postscript file. - reset the gnuplot terminal type to X11. 2. Relevant equations None. 3. The attempt at a solution Here is what I am doing. I create a .dat with with the above download (which is just two columns of values). Then I create a .gpl file with the following line: plot [-0.5:3.5] [-0.1:1.1] 'xxx.dat' with lines After opening gnuplot I type: load "xxx.gpl" and my plot opens fine. Reading some instructions on saving plots, I then do: set terminal to postscript set output "xxx.ps" Then quit gnuplot. Lastly I use gv to view my newly created .ps file using: gv xxx.ps. After a few seconds I get an error saying gv cannot open file because there is no data. Sure enough using ls -l I can my xxx.ps file is 0kb. Any ideas what I am doing wrong or why this isn't working?