multi_plot.gp

set terminal postscript eps enhanced color solid
set output "prog_chem.eps"

set lmargin 0
set rmargin 0
set tmargin 0
set bmargin 0

set xrange [0:2500]

set multiplot layout 3,1

set size   0.4, 0.27
set origin 0.25, 0.15
set xlabel "Time step t/{/Symbol t}" offset 0,-0.5 font "Helvetica,20"
set label 1 at graph 0.1, 0.7 "(c)" font "Helvetica,22"
set xtics 0,1000,5000
set mxtics 5
set ytics 0,0.5,1.1
set yrange [0.0:1.1]
set mytics 5
set tics scale 3.0, 1.5
set tics font "Helvetica, 20"
set ylabel "n_{chem}" offset -1.0,0 font "Helvetica,20"
unset key
plot "reacnumb_wtime.txt" lw 1.5

set size   0.4, 0.27
set origin 0.25, 0.42
set label 1 at graph 0.1, 0.7 "(b)" font "Helvetica,22"
set format x ""
unset xlabel
set ytics 1200,2000,6500
set yrange [1000:6500]
set mytics 4
set tics scale 3.0, 1.5
set tics font "Helvetica, 20"
set ylabel "A_{amp} /{/Symbol s}^{2}" offset -1.5,0 font "Helvetica,20"
unset key
plot "vol_surf_wtime.txt" u 1:3 lw 1.5

set size   0.4, 0.27
set origin 0.25, 0.69
set label 1 at graph 0.1, 0.7 "(a)" font "Helvetica,22"
set format x ""
unset xlabel
set ytics 4
set yrange [5:20]
set mytics 4
set tics scale 3.0, 1.5
set tics font "Helvetica, 20"
set ylabel "R_{g}/{/Symbol s}" offset -1.5,0 font "Helvetica,20"
unset key
plot "iner_rad_wtime.txt" u 1:3 lw 1.5

unset multiplot