reset set terminal postscript enhanced color solid set output "total.ps" set xrange [0:16] set yrange [0:3] set title "Position Difference between 'imexam' and 'apphot'" set xlabel "Radius from the View Center(04 46 11.300 +19 09 23.00) [arcmin]" set ylabel "Difference [pixel]" set sample 1000 plot "total.list" using 11:8 with points pt 7 ps 1 lt 1 notitle