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From: Karl Ratzsch <mail.kfr@gmx.net>
Newsgroups: comp.graphics.apps.gnuplot
Subject: Re: Multiple coloured point lines
Date: Thu, 22 Feb 2024 21:15:12 +0100
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Xref: csiph.com comp.graphics.apps.gnuplot: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?