Plot CSV data as histogram in GNUPlot using log transform

epub-CB.csv

histogram-log.plt

#!/gnuplot
#    
# Histogram of word count distribution
#
set terminal postscript enhanced landscape
set output "histogram.ps"
set size ratio 0.5
set key top right
set xlabel "Word count"
set ylabel "Number of files"
#set yrange [0:25]
set style fill solid 1.0 border -1
set format x "10^{%x}"
set xtics 1
set datafile separator ","
binwidth=0.1 # Adjust according to distribution of values in data file 
set boxwidth binwidth
bin(x,width)=width*floor(x/width) + binwidth/2
plot "./epub-CB.csv" using (bin(log10($2),binwidth)):(1.0) smooth freq with boxes t ""
pause 0
# EOF