I know how to create a histogram (just use "with boxes") in gnuplot if my .dat file already has properly binned data. Is there a way to take a list of numbers and have gnuplot provide a histogram based on ranges and bin sizes the user provides?
+8
A:
yes, and its quick and simple though very hidden:
binwidth=5
bin(x,width)=width*floor(x/width)
plot 'datafile' using (bin($1,binwidth)):(1.0) smooth freq with boxes
check out help smooth freq
to see why the above makes a histogram
to deal with ranges just set the xrange variable.
Cheers /B2S
Born2Smile
2010-03-29 14:52:21
Actually that second part should be `bin(x,width)=width*floor(x/width) + binwidth/2.0` (floating point calculations)
PiPeep
2010-08-29 18:33:49