using Gnuplot
empty!(Gnuplot.options.init)
push!( Gnuplot.options.init, linetypes(:tableau_hue_circle, lw=1.5, ps=1.5))
function saveas(file; sx=550, sy=350, fs=0.8, term="svg")
    Gnuplot.save(term="$(term) size $(sx),$(sy) fontscale $(fs)", "$(file).svg")
end;

Time series: Dates, break axis into 3

using Gnuplot, Dates

dates = Date(2018, 1, 1):Day(1):Date(2019, 12, 31)
ta = rand(length(dates))
timefmt = "%Y-%m-%d" ## hour:minute:seconds are also available
pfmt = "%Y-%m-%d"
rot_xtics = -35
vals = 0.5*ta
tempo = string.(dates)
xmin1 = "2018-01-01"
xmax1 = "2018-04-01"
xmin2 = "2018-07-01"
xmax2 = "2018-09-31"
xmin3 = "2019-05-01"
xmax3 = "2019-09-31"

@gp "set multiplot; set border 7; set ytics nomirror; set grid" :-
@gp :- "set xdata time" "set timefmt '\"$(timefmt)\"'" :-
@gp :- "set format x '$(pfmt)'" "set xtics rotate by $(rot_xtics)" :-
@gp :- "set tmargin at screen 0.96; set bmargin at screen 0.15" :-
@gp :- "set lmargin at screen 0.1; set rmargin at screen 0.36" :-
@gp :- """set xrange [\'"$(xmin1)\"':\'"$(xmax1)\"']""" yrange = (-0.25,0.75) :-

# set some lines to delimit transition from one half of the plot to next
@gp :- "set arrow from screen 0.365,0.13 to screen 0.385,0.17 nohead" :-
@gp :- "set arrow from screen 0.355,0.13 to screen 0.375,0.17 nohead" :-

@gp :- "set arrow from screen 0.365,0.94 to screen 0.385,0.98 nohead" :-
@gp :- "set arrow from screen 0.355,0.94 to screen 0.375,0.98 nohead" :-
# second break
@gp :- "set arrow from screen 0.665,0.13 to screen 0.685,0.17 nohead" :-
@gp :- "set arrow from screen 0.655,0.13 to screen 0.675,0.17 nohead" :-

@gp :- "set arrow from screen 0.665,0.94 to screen 0.685,0.98 nohead" :-
@gp :- "set arrow from screen 0.655,0.94 to screen 0.675,0.98 nohead" :-

# plot left half
@gp :- tempo vals "u 1:2 w l not" :-
# remove border from left hand side and set ytics on the right
@gp :- 2 "set grid" """unset border; set border 1+4;set format y ""; """

# set left and right margins for right half of the plot
@gp :- "set lmargin at screen 0.38" :-
@gp :- "set rmargin at screen 0.66" :-
# set xrange for right half of the plot
@gp :- """set xrange [\'"$(xmin2)\"':\'"$(xmax2)\"']""" :-
##@gp :- "plot sin(x) axes x1y2"
@gp :-  tempo vals "u 1:2 w l not 'series'"
# remove border from left hand side and set ytics on the right
@gp :- 3 "set grid" """set border 13; set format y ""; """

# set left and right margins for right half of the plot
@gp :- "set lmargin at screen 0.68" :-
@gp :- "set rmargin at screen 0.96" :-
# set xrange for right half of the plot
@gp :- """set xrange [\'"$(xmin3)\"':\'"$(xmax3)\"']""" :-
##@gp :- "plot sin(x) axes x1y2"
@gp :-  tempo vals "u 1:2 w l t 'series'"
saveas("lines008");