44 lines
1.5 KiB
Gnuplot
44 lines
1.5 KiB
Gnuplot
set term postscript eps enhanced
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set output "flash.eps"
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set grid
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set xdata time
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set timefmt "%Y-%m-%d"
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#set xtics format "%b %d"
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set format x "%Y"
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set xlabel "Date (x)"
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set ylabel "Days from Last Release (y)"
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set title "Date vs Days from Last Flash Release"
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set yrange [0:750]
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#set xrange [1998-01-01:2015-06-01]
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set style line 1 lc rgb '#0060ad' lt 1 lw 2 pt 7 pi -1 ps 1.5
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#set label "Neil Edelman" at screen 0.2, screen 0.15
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# the time format is seconds since 2000-01-01, y(x) is days since 1996-01-01, the difference is 1461 days
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y(x) = a * exp (-(x - days) / flat)
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z(x) = a * exp (-(x/24/3600 - days) / flat /130) #fixme
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#z(x) = a * exp (-(x - (days - 1461)/3600/24) / flat)
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#z(x) = 0.1*(x/3600/24-365) + 0#+ a * exp (-(x - 24*3600*(days - 1461)) / flat)
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#z(x) = a * exp (-(x/3600/24 - days + 1461) / flat)
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#300-(x/3600/24/365)
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a = 2833.45
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days = 712.058 - 1461
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flat = 9.24284
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plot "flash-extra.data" using 2:4 title "Adobe Flash Releases" with lines lt 1 linecolor rgb '#0060ad' lw 4, z(x) title "y = 2800d exp(-(x - [1994-01-18]) / 9.24d); {/Symbol C}^2_r 38000"
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#plot "flash.data" using 2:1 title "Flash releases" with lines
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#,y(x) title "x + 1"
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#delta(date) = (delta = date - old, old = date, delta)
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#old = NaN
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#plot "flash.data" using 2:(timecolumn(2)) title "Flash releases" with lines
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#delta_v(x) = ( vD = x - old_v, old_v = x, vD)
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#old_v = NaN
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#set title "Compute Deltas"
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#set style data lines
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#plot 'flash.data' using 0:($1), '' using 0:(delta_v($1)) title 'Delta'
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