gnuplot @ 14b2a5152bea

# Basic Settings ---------------------------------------------------------- {{{

set encoding utf8
set terminal qt noraise
set samples 1000

# }}}
# Styles ------------------------------------------------------------------ {{{

set grid

set pointintervalbox 1.3

clr = "call '~/src/dotfiles/gnuplot-scripts/color.gp'"
bwp = "call '~/src/dotfiles/gnuplot-scripts/black-and-white-points.gp'"
bwl = "call '~/src/dotfiles/gnuplot-scripts/black-and-white-lines.gp'"
bwlp = "call '~/src/dotfiles/gnuplot-scripts/black-and-white-lines-points.gp'"
@clr

# }}}
# Constants --------------------------------------------------------------- {{{

tau = 2 * pi
e = 2.71828182845905
r2 = sqrt(2.0)
rfc3339 = "%Y-%m-%dT%H:%M:%S"
iso8601 = "%Y-%m-%dT%H:%M:%S"

# }}}
# Utility Functions ------------------------------------------------------- {{{

min(a, b) = (a<b) ? a : b
max(a, b) = (a>b) ? a : b

# }}}
# Linear Regression Fitting Functions ------------------------------------- {{{

baselrt(mm, bb, mprecision, bprecision) = sprintf(\
        sprintf("%%.%dfx + %%.%df", mprecision, bprecision), \
    mm, bb)

lr(x) = m * x + b
lrt(mp, bp) = baselrt(m, b, mp, bp)

lr2(x) = m2 * x + b2
lrt2(mp, bp) = baselrt(m2, b2, mp, bp)

lr3(x) = m3 * x + b3
lrt3(mp, bp) = baselrt(m3, b3, mp, bp)

lr4(x) = m4 * x + b4
lrt4(mp, bp) = baselrt(m4, b4, mp, bp)

# }}}
# Convenience Wrappers ---------------------------------------------------- {{{
# usage: @xrfc3339

csvinput = 'set datafile separator ","'
xrfc3339 = "set xdata time; set timefmt rfc3339"
yrfc3339 = "set ydata time; set timefmt rfc3339"

y_def = sprintf("set ytics format '%h'") # eval y_def()
y_eng(n) = sprintf("set ytics format '%." . n . "sx10^%S'") # eval y_eng(1) → 100.1 x 10⁶

# }}}
# Quick Plots ------------------------------------------------------------- {{{
# usage: @qpng

qpng = 'set terminal pngcairo size 1600,1200; set termoption font "Routed Gothic,18"; set output "plot.png"'
qpdf = 'set terminal pdfcairo size 16in,12in; set termoption font "Routed Gothic,20"; set output "plot.pdf"'

# }}}
# Exporting --------------------------------------------------------------- {{{

export(file, terminal) = sprintf( \
        "set terminal push;" . \
        "set terminal %s;" . \
        "set output '%s';" . \
        "replot;" . \
        "set output;" . \
        "set terminal pop;" . \
        "print system('realpath %s | nnl | pbcopy');" \
    , terminal, file, file)

export_pdf(file) = export(file . '.pdf', "pdfcairo")
export_png(file) = export(file . '.png', "pngcairo")

pdf = "eval export_pdf('graph')"
png = "eval export_png('graph')"

# }}}
# Histograms -------------------------------------------------------------- {{{

histogram_bin_width=1024*256
histogram_bin(x,width)=width*floor(x/width) + width/2.0
set boxwidth histogram_bin_width*0.9
set style fill solid 0.5 

# plot 'sizes' using (histogram_bin($1,histogram_bin_width)):(1.0) smooth freq with boxes

# }}}
# Other ------------------------------------------------------------------- {{{

kdens(file, column, bandwidth) = sprintf( \
        "stats '%s' using %d;" . \
        "plot '%s' using %d:(1.0/STATS_records) smooth kdensity bandwidth %f;" \
    , file, column, file, column, bandwidth)

cdf(file, column) = sprintf( \
        "plot '%s' using %d:(1.0) smooth cnormal;" \
    , file, column)

# }}}