How to use splot?

[Bissiatti]

Hi, I need plot a 3d parametrical curve {sin(u),cos(u),u}, but if I write this:

local toPlot = {
    "set grid",
    "set parametric",
    {"sin(u),cos(u),u"},
}
gnuplot(toPlot)

Not found:

"___tmp.gnuplot.cmds.txt" line 3: undefined variable: u"

I need use splot to gnuplot make a 3d plot, but I don't know how make this with your lib.

[thenumbernine]

So yup, you can use each table entry as a separate gnuplot command.
Using that format you can just write

gnuplot{
    persist=true,
    "set grid",
    "set parametric",
    "splot sin(u),cos(u),u",
}

Or if you would like to use the named-arguments, you can do this:

gnuplot{
    persist=true,
    'set grid',
    parametric=true,
    {splot=true, 'sin(u),cos(u),u'},
}

...and both will produce this:

[Bissiatti]

Thank you, the last one is better to use.