Example on how to use GNUPlot to output high quality graphs

generate_plots.sh

#!/usr/bin/env bash

INPUT_DIR="../50_5_5"
OUTPUT_DIR=".."

PARAMETERS=( "like-mindedness" "modularity" )
LABELS=( "Like-mindedness" "Modularity (Q)" )

for i in ${!PARAMETERS[*]}; do
    gnuplot <<- EOF
        set terminal postscript eps enhanced color solid
        set output '${OUTPUT_DIR}/${PARAMETERS[$i]}.eps'
        set style line 1 lt 1 lw 2 lc 1
        set style line 2 lt 1 lw 2 lc 2
        set style line 5 lt 0 lw 2 lc 2
        set style line 3 lt 1 lw 2 lc 3
        set style line 6 lt 0 lw 2 lc 3
        set style line 4 lt 1 lw 2 lc 4
        set style line 7 lt 0 lw 2 lc 4
        set key center right
        set title '${LABELS[$i]} vs. |C|'
        set xlabel 'Number of communities (|C|)'
        set ylabel '${LABELS[$i]}'
        set grid xtics
        set grid ytics
        plot '${INPUT_DIR}/${PARAMETERS[$i]}.betweenness' w l ls 1 title 'GN', \
            '${INPUT_DIR}/${PARAMETERS[$i]}.seen.single-linkage' w l ls 2 title 'SS', \
            '${INPUT_DIR}/${PARAMETERS[$i]}.seen.average-linkage' w l ls 3 title 'AS', \
            '${INPUT_DIR}/${PARAMETERS[$i]}.seen.complete-linkage' w l ls 4 title 'CS', \
            '${INPUT_DIR}/${PARAMETERS[$i]}.rating.single-linkage' w l ls 5 title 'SR', \
            '${INPUT_DIR}/${PARAMETERS[$i]}.rating.average-linkage' w l ls 6 title 'AR', \
            '${INPUT_DIR}/${PARAMETERS[$i]}.rating.complete-linkage' w l ls 7 title 'CR'
        
EOF
done

PREFIXES=( 10 20 30 40 50 58 100 128 200 300 400 500 1000 2000 3000 4000 5000 )
PARAMETERS=( clu den sep )
SUFFIXES=( clustering-coefficient density separability )
LABELS=( Clustering-coefficient Density Separability )

for PREFIX in "${PREFIXES[@]}"; do
    for i in ${!PARAMETERS[*]}; do
        gnuplot <<- EOF
            set terminal postscript eps enhanced color solid
            set output '${OUTPUT_DIR}/${SUFFIXES[$i]}_${PREFIX}.eps'
            set style line 1 lt 1 lw 2 lc 1
            set style line 2 lt 1 lw 2 lc 2
            set style line 5 lt 0 lw 2 lc 2
            set style line 3 lt 1 lw 2 lc 3
            set style line 6 lt 0 lw 2 lc 3
            set style line 4 lt 1 lw 2 lc 4
            set style line 7 lt 0 lw 2 lc 4
            set style line 8 lt 1 lw 2 lc 5
            set title 'Cumulative Average of ${LABELS[$i]} vs. k'
            set xlabel 'k'
            set ylabel 'Average ${SUFFIXES[$i]} of top k communities'
            set grid xtics
            set grid ytics
            set xrange [0:${PREFIX}]
            unset border
            plot '${INPUT_DIR}/${PREFIX}_communities.betweenness.${PARAMETERS[$i]}.avg' w l ls 1title 'GN', \
                '${INPUT_DIR}/${PREFIX}_communities.seen.single-linkage.${PARAMETERS[$i]}.avg' w l ls 2 title 'SS', \
                '${INPUT_DIR}/${PREFIX}_communities.seen.average-linkage.${PARAMETERS[$i]}.avg' w l ls 3 title 'AS', \
                '${INPUT_DIR}/${PREFIX}_communities.seen.complete-linkage.${PARAMETERS[$i]}.avg' w l ls 4 title 'CS', \
                '${INPUT_DIR}/${PREFIX}_communities.rating.single-linkage.${PARAMETERS[$i]}.avg' w l ls 5 title 'SR', \
                '${INPUT_DIR}/${PREFIX}_communities.rating.average-linkage.${PARAMETERS[$i]}.avg' w l ls 6 title 'AR', \
                '${INPUT_DIR}/${PREFIX}_communities.rating.complete-linkage.${PARAMETERS[$i]}.avg' w l ls 7 title 'CR', \
                '${INPUT_DIR}/${PREFIX}_communities.modularity.${PARAMETERS[$i]}.avg' w l ls 8 title 'MM'
EOF
    done
done