Gnuplot dot dash

Question

Hi guys I'm using Windows and I'm trying to get something done in Gnuplot. I need to set the line style of my graph as dot dash.

http://sparky.rice.edu/gnuplot.html tells me that:

 Differs from x11 to postscript
 lt chooses a particular line type: -1=black 1=red 2=grn 3=blue 4=purple 5=aqua 6=brn 7=orange 8=light-brn
 lt must be specified before pt for colored points
 for postscipt -1=normal, 1=grey, 2=dashed, 3=hashed, 4=dot, 5=dot-dash

What does he mean by postscript here? How can I achieve this? I've been trying many times to plot my graph using the command: plot 'graph1.txt' with lines lt 5 but I don't get the dot-dash line.

Help would be immensely appreciated!

Answer 1

This means that the values given for lt only work when you are plotting to a Postscript file, and will not work if you plot in a window in the straightforward way. Simplest thing would be to plot to a Postscript file using

set term postscript
set output "file.ps"

The plot will be in file.ps.