You can plot different columns of the same file like this: plot ‘file’ using 0:1 with lines, ” using 0:2 with lines … (… means continuation). A couple of notes on this notation: using specifies which column to plot i.e. column 0 and 1 in the first using statement, the 0th column is a pseudo … Read more
If you want to increase the resolution try set samples <X> where <X> is an integer. Per default this integer is set to 100. Increase that number to your needs. Though, the higher the integer is chosen the longer it will take gnuplot to plot the graph.
From the Gnuplot documentation: To draw a vertical line from the bottom to the top of the graph at x=3, use: set arrow from 3, graph 0 to 3, graph 1 nohead
The source of your problems with the PNG quality is most likely the missing antialiasing in the png terminal of Gnuplot. Since you give no screenshots, I’m not sure what you mean when talking about bad linewidth, but here’s how it looks for me (on MacOS). This screenshot shows the output of gnuplot’s native aquaterm … Read more
Use the pointtype and pointsize options, e.g. plot “./points.dat” using 1:2 pt 7 ps 10 where pt 7 gives you a filled circle and ps 10 is the size. See: Plotting data.
Until version 4.6 The dash type of a linestyle is given by the linetype, which does also select the line color unless you explicitely set an other one with linecolor. However, the support for dashed lines depends on the selected terminal: Some terminals don’t support dashed lines, like png (uses libgd) Other terminals, like pngcairo, … Read more
As Romain, Dr. Person and neillb all point out and this wikibooks article confirms, there is no official standard extension for gnuplot files. These three file extensions do seem popular: .gpi .plt .gp Of these .gp is shortest and seems like it would have the fewest collisions with other programs. But the other two extensions … Read more
You’re so close! Change plot “print_1012720” using 1:2 title “Flow 1”, \ plot “print_1058167” using 1:2 title “Flow 2”, \ plot “print_193548” using 1:2 title “Flow 3”, \ plot “print_401125” using 1:2 title “Flow 4”, \ plot “print_401275” using 1:2 title “Flow 5”, \ plot “print_401276” using 1:2 title “Flow 6” to plot “print_1012720” using … Read more
There sure is (in gnuplot 4.4+): plot for [i=1:1000] ‘data’.i.’.txt’ using 1:2 title ‘Flow ‘.i The variable i can be interpreted as a variable or a string, so you could do something like plot for [i=1:1000] ‘data’.i.’.txt’ using 1:($2+i) title ‘Flow ‘.i if you want to have lines offset from each other. Type help iteration … Read more
yes, and its quick and simple though very hidden: binwidth=5 bin(x,width)=width*floor(x/width) plot ‘datafile’ using (bin($1,binwidth)):(1.0) smooth freq with boxes check out help smooth freq to see why the above makes a histogram to deal with ranges just set the xrange variable.