Gnuplot Example

apt-get -qq update

apt-get install gnuplot gnuplot-nox

echo 'set terminal svg

set output "/results/out.svg

set title "Cavendish Data"

set xlabel "Time (s)"

set ylabel "Angle (mrad)"

set grid

plot _ with lines title "Cavendish"' > gnu.script

gnuplot gnu.script

apt-get -qq update

apt-get install gnuplot gnuplot-nox

]add Gnuplot; precompile

using Gnuplot

x = -2pi:0.1:2pi

approx = fill(0., length(x));

@gp tit="Polynomial approximation of sin(x)" key="opaque" linetypes(:Blues_4)

@gp :- "set encoding utf8" raw"""set xtics ('-π' -pi, '-π/2' -pi/2, 0, 'π/2' pi/2, 'π' pi)"""

@gp :- xr=3.8.*[-1, 1] yr=[-1.5,1.5] "set grid front"

@gp :- x sin.(x) approx .+=  x          "w filledcurve t 'n=0' lt 1"

@gp :- x sin.(x) approx .+= -x.^3/6     "w filledcurve t 'n=1' lt 2"

@gp :- x sin.(x) approx .+=  x.^5/120   "w filledcurve t 'n=2' lt 3"

@gp :- x sin.(x) approx .+= -x.^7/5040  "w filledcurve t 'n=3' lt 4"

@gp :- x sin.(x)                        "w l t 'sin(x)' lw 2 lc rgb 'black'"

save(term="svg size 640,480",output="/results/out.svg")