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## hi, I am a gnuplot script and you are probably trying to do in perl my own job

set terminal png large size 1920,1200
set output 'output.png'
set style histogram
set title "my title"
set xlabel "my x varname"
set ylabel "my y varname"
set yrange [0:10]
set style fill solid border -1

binwidth=5
set boxwidth binwidth

bin(x,width)=width*floor(x/width) + binwidth/2.0

plot 'mydata.dat' using (bin($1,binwidth)):(1.0) smooth freq with boxes 
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