'Logfile.txt' using ($0*4):2 title 'Alow' with lines lc rgb '#3982FF',\ Plot 'Logfile.txt' using ($0*4):1 title 'Aloft' with lines lc rgb 'red',\ Set y2label 'Tdiff, degC' textcolor rgb '#00CD63' # gpFanCtl - Plots DiffThermo fan controller data (aloft, alow, Tdiff, fan-state). # Note reverse video here ^^^ til I find a way to put it in the script Something I found very useful was to script it to reload my terminal program's logfile periodically so i got a dynamic graph as my experiment progressed.Įdit: Here is the GnuPlot script that plots it: #!/usr/local/bin/gnuplot -rv
Advantages: It's very flexible, scriptable, and freely available.ĭisadvantages: A bit complex to learn (but I figured out how to get started in a few minutes, and quite functional in an hour or two), runs in a terminal window (if you consider that a disadvantage).
