# set terminal svg size 600,400 dynamic enhanced fname 'arial' fsize 10 mousing name "running_avg_1" butt solid # set output 'running_avg.1.svg' set border 3 front linetype -1 linewidth 1.000 set key inside right center vertical Left reverse enhanced autotitles box linetype -1 linewidth 1.000 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 offset character 0, 0, 0 autojustify set ytics border in scale 1,0.5 nomirror norotate offset character 0, 0, 0 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 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) GPFUN_samples = "samples(x) = $0 > 4 ? 5 : ($0+1)" back1 = 5.0 back2 = 9.0 back3 = 8.0 back4 = 9.0 back5 = 10.0 GPFUN_avg5 = "avg5(x) = (shift5(x), (back1+back2+back3+back4+back5)/samples($0))" GPFUN_shift5 = "shift5(x) = (back5 = back4, back4 = back3, back3 = back2, back2 = back1, back1 = x)" GPFUN_init = "init(x) = (back1 = back2 = back3 = back4 = back5 = sum = 0)" datafile = "silver.dat" sum = 1918.0 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"