Можно ли сохранять части кода в переменной?

Вот одна часть моего сценария:

if (PNG == 1) {
    set terminal png size 1024,768 font "Arial,11"
    SAVE_AS = FILENAME.'.png'
    print "    - Create file: ".SAVE_AS
    set output SAVE_AS
    plot DATA_FILE using ($1/3600.0):(column('POW-FP+D')) with lines title 'POW-FP+D' linecolor rgb "red" axis x1y1,\
         DATA_FILE using ($1/3600.0):(column('PR-Core')) with lines title 'PR-Core' linecolor rgb "blue" axis x1y2
}

if (SVG == 1) {
     set term svg size 600,400 dynamic font 'Arial,11'
     SAVE_AS = FILENAME.'.svg'
     print "    - Create file: ".SAVE_AS
     set output SAVE_AS
    plot DATA_FILE using ($1/3600.0):(column('POW-FP+D')) with lines title 'POW-FP+D' linecolor rgb "red" axis x1y1,\
         DATA_FILE using ($1/3600.0):(column('PR-Core')) with lines title 'PR-Core' linecolor rgb "blue" axis x1y2
}

Как вы можете видеть, график DATA_FILE... встречается в моем коде дважды: один раз в PNG-части и один раз в SVG-части. Можно ли поместить код в какую-то переменную и потом ссылаться на эту переменную.

Вот некоторый псевдокод:

a = DATA_FILE using ($1/3600.0):(column('POW-FP+D')) with lines title 'POW-FP+D' linecolor rgb "red" axis x1y1,\
    DATA_FILE using ($1/3600.0):(column('PR-Core')) with lines title 'PR-Core' linecolor rgb "blue" axis x1y2

if (PNG == 1) {
    ...
    plot a
}

if (SVG == 1) {
     ...
    plot a
}

Редактировать:

Вот весь скрипт:

# Run as follows:
#    
#  gnuplot.exe -e "DATA_FILE='<path/to/root/>/input/PEDS_1.csv'; PIC_FOLDER='<path/to/root/>/output';
#                  SEQ='PEDS_1'; X_MAX=50; PNG=1; SVG=1" <filename>.gplt
#
# The variables are as follows:
#  DATA_FILE : The output CSV file
#  PIC_FOLDER: The full path of the folder, where the created graphs should be saved
#  SEQ       : The name of the Sequence
#  X_MAX     : The maximum simulation time (in hours) to be displayed. Default value is 50:
#  PNG       : Set 1 if a PNG graph should be created. Default value is 0.
#  SVG       : Set 1 if a SVG graph should be created. Default value is 0.

# Set default values
if (!exists('X_MAX')){
     X_MAX = 50
}

if (!exists('PNG')){
     PNG = 0
}

if (!exists('SVG')){
     SVG = 0
}

# Get the filename of this gnuplot script
SCRIPT_FILENAME = ARG0[strlen(ARG0)-8:strlen(ARG0)-5]

# Set the filename (without extension)
FILENAME = PIC_FOLDER.'/'.SEQ.'___'.SCRIPT_FILENAME

set encoding utf8
set datafile separator ','
set key autotitle columnhead
set title "KPDS «".SEQ."»" noenhanced

# x-Axis
set xlabel 'Time (h)' offset -2,0,0
set xrange [0:X_MAX]
set mxtics 10

# y-Axis
set ylabel 'Power (MW)' textcolor "red" offset 2,0,0
set yrange [0:100]
set ytics textcolor "red"
set mytics 10

# y2-Axis
set y2label 'Pressure (bara)' textcolor rgb "blue" offset -2,0,0
set y2range [0:100]
set y2tics textcolor rgb "blue"
set my2tics 10

# Grid
set grid linetype 2 linewidth 0.2 linecolor rgb '#DCDCDC'
set grid mxtics
set grid mytics

# Legend
set key off title

if (PNG == 1) {
    set terminal png size 1024,768 font "Arial,11"
    SAVE_AS = FILENAME.'.png'
    set output SAVE_AS
    plot DATA_FILE using ($1/3600.0):(column('POW-FP+D')) with lines title 'POW-FP+D' linecolor rgb 'red' axis x1y1,\
         fname using ($1/3600.0):(column('PR-Core')) with lines title 'PR-Core' linecolor rgb 'blue' axis x1y2
}

if (SVG == 1) {
    set term svg size 600,400 dynamic font 'Arial,11'
    SAVE_AS = FILENAME.'.svg'
    set output SAVE_AS
    plot DATA_FILE using ($1/3600.0):(column('POW-FP+D')) with lines title 'POW-FP+D' linecolor rgb 'red' axis x1y1,\
         fname using ($1/3600.0):(column('PR-Core')) with lines title 'PR-Core' linecolor rgb 'blue' axis x1y2
}

Извините за первое сообщение, где я его не предоставил.