# set terminal canvas  solid butt size 600,400 fsize 10 lw 1 fontscale 1 name "simple_8" jsdir "."
# set output 'simple.8.js'
set key bmargin left horizontal Right noreverse enhanced autotitles box linetype -1 linewidth 1.000
set samples 800, 800
plot [-19:19] '1.dat'with impulses ,'2.dat' ,'3.dat' with lines