If I have a data file with 4 columns:
x1, y1, x2, y2,
How can plot a line connecting (x1, y1) to (x2, y2) for each element (row)?
I assume it is pretty easy, but I have been playing around for an hour unsuccessfully.
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1 Answer
plot "DATA" using 1:2:($3-$1):($4-$2) with vectors nohead
The vectors style reads four columns (x, y, dx, dy) and draws a vector from (x, y) to (x + dx, y + dy).
nohead prevents gnuplot from drawing the arrow head.
