Plotting arrows with gnuplot

Question

I have data generated in a simulation. The generated data file looks something like this:

1990/01/01 99
1990/01/02 92.7
1990/01/03 100.3
1990/01/04 44.2
1990         


        

Answer 1

I dont think there is an automatic way to create all your arrows at the same time based on the third column. You will have to execute the following for each arrow that you want:

set arrow xval1,yval1 to xval2,yval2

You can also use relative arrows

set arrow xval1,yval1 rto 1,0

This will draw a horizontal arrow from xval1,yval1 to (xval1+1),yval1

There are plenty of options associated with the set arrow command: