Gnuplot is a portable command-line driven graphing utility for Linux, OS/2, MS Windows, OSX, VMS, and many other platforms.

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Plotting Pairs of Ordered Pairs in Gnuplot

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 ...