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Simple gnuplot histogram example

August 22, 2014, 7:52 am

The gnuplot histogram style wont automagically bin your data. To do this you need to either use an external program, or add some additional code, here a simple example:

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set terminal png
set output "hist.png"
set boxwidth 1
set style fill solid
set style histogram
set style data histogram
bw=1
bin(x,width)=width*floor(x/width) + bw/2.0
plot "test.dat" using (bin($1,bw)):(1.0) smooth freq with boxes

Using this data file:

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You should see this output:

hist

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