Gnuplot

First script

  set terminal postscript eps enhanced color "Times-Roman" 20

  set style line 1 linetype 1 linecolor rgb "696969" linewidth 3.0 pointtype 1
  set style line 2 linetype 1 linecolor rob "FF6600" linewidth 3.0 pointtype 1

Macros

  T_GRAPH = "set tmargin at screen 0.99; set bmargin at screen 0.81"
  B_GRAPH = "set tmargin at screen 0.74; set bmargin at screen 0.56"

  L_GRAPH = "set lmargin at screen 0.12; set rmargin at screen 0.45"
  R_GRAPH = "set lmargin at screen 0.61; set rmargin at screen 0.94"