Dear all,
I would like to ask whether it is possible, within the gnuplot command in
Gretl, to assign multiple series to the secondary y-axis. In the example script
below, the aim is to plot both heating and gasoline prices on the y2 axis. I
tried using a list of variables in the y2 option, but it does not work as
expected. Is there a way to specify more than one series for y2 using the
gnuplot command? Any suggestions or workarounds would be greatly appreciated.
Best regards,
Marco
EXAMPLE SCRIPT:
include yahoo_get.gfn
nulldata 1500
setobs 5 2018-01-01
series wti = yahoo_price("CL=F",1)
series brent = yahoo_price("BZ=F",1)
series gasoline = yahoo_price("RB=F",1)
series heating = yahoo_price("HO=F",1)
delete index
list Energy = wti brent gasoline heating
list y2 = gasoline heating
gnuplot Energy --time-series --with-lines --output=display --y2axis=gasoline
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