gnuplot-info

[Gnuplot-info] linecolor input from file

[Mátyás S. <ser...@gm...>]

Hi all,

I have a problem with plotting points on the same graph with different
colors specified in a data file.
Here is the script I would like to correct to get it work:

set terminal jpeg enhanced
set out "data.jpg"
#x=column 3 of datafile
plot "data.dat" using 1:2 linecolor x
set out

So the x should be the actual color specifying number in the file. The
data.dat looks like this:

1.0 2.1 1
1.1 2.3 1
1.2 2.4 2
1.3 2.7 2
1.4 3.2 3
1.5 3.8 4
1.6 4.7 5

Could you please help?

Thanks,

Mat

Re: [Gnuplot-info] linecolor input from file

[Thomas S. <t.s...@fz...>]

Mátyás Seress <serimatyi <at> gmail.com> writes:

> ...
> I have a problem with plotting points on the same graph with different
> colors specified in a data file.
> Here is the script I would like to correct to get it work:
> 
> set terminal jpeg enhanced
> set out "data.jpg"
> #x=column 3 of datafile
> plot "data.dat" using 1:2 linecolor x
> set out
> 
> So the x should be the actual color specifying number in the file. The
> data.dat looks like this:
> 
> 1.0 2.1 1
> 1.1 2.3 1
> 1.2 2.4 2
> 1.3 2.7 2
> 1.4 3.2 3
> 1.5 3.8 4
> 1.6 4.7 5
>
> ...

assuming that you want to interpret the 3rd column in
the datafile as color information, the syntax for
variable colors in one plot is

plot "data.dat" using 1:2:3 linecolor variable

where the 3rd argument to 'using' specifies the column
to read the color information from.

Re: [Gnuplot-info] linecolor input from file

[Mátyás S. <ser...@gm...>]

Thanks, it solved the problem!


2014-03-20 21:32 GMT+01:00 Thomas Sefzick <t.s...@fz...>:

> Mátyás Seress <serimatyi <at> gmail.com> writes:
>
> > ...
> > I have a problem with plotting points on the same graph with different
> > colors specified in a data file.
> > Here is the script I would like to correct to get it work:
> >
> > set terminal jpeg enhanced
> > set out "data.jpg"
> > #x=column 3 of datafile
> > plot "data.dat" using 1:2 linecolor x
> > set out
> >
> > So the x should be the actual color specifying number in the file. The
> > data.dat looks like this:
> >
> > 1.0 2.1 1
> > 1.1 2.3 1
> > 1.2 2.4 2
> > 1.3 2.7 2
> > 1.4 3.2 3
> > 1.5 3.8 4
> > 1.6 4.7 5
> >
> > ...
>
> assuming that you want to interpret the 3rd column in
> the datafile as color information, the syntax for
> variable colors in one plot is
>
> plot "data.dat" using 1:2:3 linecolor variable
>
> where the 3rd argument to 'using' specifies the column
> to read the color information from.
>
>
>
>
> ------------------------------------------------------------------------------
> Learn Graph Databases - Download FREE O'Reilly Book
> "Graph Databases" is the definitive new guide to graph databases and their
> applications. Written by three acclaimed leaders in the field,
> this first edition is now available. Download your free book today!
> http://p.sf.net/sfu/13534_NeoTech
> _______________________________________________
> gnuplot-info mailing list
> gnu...@li...
> Membership management via:
> https://lists.sourceforge.net/lists/listinfo/gnuplot-info
>