Gnuplot change color of bars in histogram

Question

is it possible to change the color of bars in a Gnuplot script dynamically? I have the following script

reset
fontsize = 12
set term postscript enhanced eps         


        

Answer 1

Actually you can also use linecolor rgb variable and give the color like this:

plot 'bm_speedup.dat' using 2:xtic(1):($2 >= 0 ? 0x00FF00 : 0xFF0000) ti Speedup lc rgb variable