{"id":3944,"date":"2016-08-10T23:42:28","date_gmt":"2016-08-10T22:42:28","guid":{"rendered":"https:\/\/stevepedwards.today\/DebianAdmin\/?p=3944"},"modified":"2023-10-28T21:57:20","modified_gmt":"2023-10-28T20:57:20","slug":"intro-to-gnuplot","status":"publish","type":"post","link":"https:\/\/stevepedwards.today\/DebianAdmin\/intro-to-gnuplot\/","title":{"rendered":"Intro to Gnuplot"},"content":{"rendered":"
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https:\/\/www.gnuplot.info\/demo\/<\/span><\/p>\n

sudo apt-get install gnuplot-x11<\/span><\/p>\n

This looks like a great tool for tech students of all disciplines. The basic idea is plotting the data from an already prepared data file, e.g. \"gaussian.txt\" \u00a0then setting the visual parameters in gnuplot for the look\/type of the graph, then running a final plot command e.g.<\/p>\n

plot 'gaussian.txt' using (rounded($1)):(1) smooth frequency with boxes<\/span><\/p>\n

(as in the bottom of page example). The file load of 2000 random numbers is at the site also - or generate your own from...<\/p>\n

for i in {1..30}; do echo $RANDOM; done > random.txt<\/span>
\n26142<\/span>
\n17913<\/span>
\n3855<\/span>
\n24665<\/span>
\n7401...<\/span><\/p>\n

man 4 random<\/span><\/p>\n

You can plot this as is:<\/p>\n

gnuplot> plot 'random.txt'<\/span><\/p>\n

\"random.png\"<\/a><\/p>\n

There are some really good, flashy examples on the web, if some are a bit complex, written as scripts and requiring .dat files to run with and this one IS rocket science\u00a6<\/p>\n

https:\/\/www.thanassis.space\/gnuplotStreaming.html<\/a><\/p>\n

You need to download and chmod his files:<\/p>\n

.\/sinuses.pl | .\/driveGnuPlots.pl 2 500 500 \"Sine\" \"Cosine\"<\/span><\/p>\n