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Multiple coloured point lines

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  Multiple coloured point lines db <dieterhansbritz@gmail.com> - 2024-02-21 14:21 +0100
    Re: Multiple coloured point lines Karl Ratzsch <mail.kfr@gmx.net> - 2024-02-22 21:15 +0100

#4655 — Multiple coloured point lines

Here is a mini example

gnuplot << eoi
set term postscript enh color eps 24
set output 'mini.eps'
set xlabel "x"
plot x w p pt 7 rgb 'black', \
      x/2 w p pt 7 rgb 'red'
quit
eoi
gv mini.eps

This baulks at the first "rgb":

gnuplot> plot x w p pt 7 rgb 'black',      x/2 w p pt 7 rgb 'red'
                          ^
          line 0: unexpected or unrecognized token: rgb

But if I leave out the second plot line (and terminate
the first properly (no ", \)) it gives me a plot of
a lot of blue points.
Why can't I have several coloured plots?
-- 
Dieter Britz

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#4658

The syntax is

    plot x lc rgb "black", x/2 lc rgb "red"

You missed the "lc" specifier.



Am 21.02.2024 um 14:21 schrieb db:
> Here is a mini example
> 
> gnuplot << eoi
> set term postscript enh color eps 24
> set output 'mini.eps'
> set xlabel "x"
> plot x w p pt 7 rgb 'black', \
>       x/2 w p pt 7 rgb 'red'
> quit
> eoi
> gv mini.eps
> 
> This baulks at the first "rgb":
> 
> gnuplot> plot x w p pt 7 rgb 'black',      x/2 w p pt 7 rgb 'red'
>                           ^
>           line 0: unexpected or unrecognized token: rgb
> 
> But if I leave out the second plot line (and terminate
> the first properly (no ", \)) it gives me a plot of
> a lot of blue points.
> Why can't I have several coloured plots?

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