# set terminal pngcairo transparent enhanced font "arial,10" fontscale 1.0 size 600, 400 # set output 'running_avg.1.png' set border 3 front lt black linewidth 1.000 dashtype solid set key fixed right center vertical Left reverse enhanced autotitle box lt black linewidth 1.000 dashtype solid set key invert samplen 4 spacing 1 width 0 height 0 set style data linespoints set xtics border in scale 1,0.5 nomirror norotate autojustify set ytics border in scale 1,0.5 nomirror norotate autojustify set title "Demonstrate use of assignment and serial evaluation operators\nto accumulate statistics as successive data lines are read in\n" set xrange [ 0.00000 : 57.0000 ] noreverse nowriteback set x2range [ * : * ] noreverse writeback set yrange [ * : * ] noreverse writeback set y2range [ * : * ] noreverse writeback set zrange [ * : * ] noreverse writeback set cbrange [ * : * ] noreverse writeback set rrange [ * : * ] noreverse writeback set colorbox vertical origin screen 0.9, 0.2 size screen 0.05, 0.6 front noinvert bdefault samples(x) = $0 > 4 ? 5 : ($0+1) avg5(x) = (shift5(x), (back1+back2+back3+back4+back5)/samples($0)) shift5(x) = (back5 = back4, back4 = back3, back3 = back2, back2 = back1, back1 = x) init(x) = (back1 = back2 = back3 = back4 = back5 = sum = 0) NO_ANIMATION = 1 back1 = 5.0 back2 = 9.0 back3 = 8.0 back4 = 9.0 back5 = 10.0 datafile = "silver.dat" sum = 1918.0 ## Last datafile plotted: "silver.dat" plot sum = init(0), datafile using 0:2 title 'data' lw 2 lc rgb 'forest-green', '' using 0:(avg5($2)) title "running mean over previous 5 points" pt 7 ps 0.5 lw 1 lc rgb "blue", '' using 0:(sum = sum + $2, sum/($0+1)) title "cumulative mean" pt 1 lw 1 lc rgb "dark-red"