Re: [Gnuplot-info] Plot questions

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

define a palette which goes from 'red' to 'blue, see
http://www.gnuplot.info/docs/node215.html

and then plot with explicit line colors

plot "myfile.txt" every ::1::1 using 3:2 with imp linecolor palette frac
0.0, \
"" every ::1::1 using 6:5 with imp notitle palette frac 0.1, \
"" every ::1::1 using 9:8 with imp notitle palette frac 0.2, \
...

for more information, see
http://www.gnuplot.info/docs/node62.html


joachim heintz wrote:
> 
> Hello -
> 
> I'm new in gnuplot. I wrote a script which reads single lines with the  
> "every" option. This works well, but I have two questions:
> 1) I'd love to have the value which is written in column 1 (which is a  
> time in my case) as the legend (key). Is this possible?
> 2) I have several xy-pairs in a line. I plot them with
> 	"myfile.txt" every ::1::1 using 3:2 with imp,\
> 	"" every ::1::1 using 6:5 with imp notitle,\
> 	"" every ::1::1 using 9:8 with imp notitle,\
> and so on. Can I change the colors in a way that the first xy-pair  
> (using 3:2 in the example above) is in red colour, and then the color  
> circle is crossed so that the last value is blue? (There are different  
> numbers of pairs; sometimes 6 or 12 or whatever. In each case the  
> first xy-value should be red and the last blue.)
> 
> Thanks for any help. Best regards -
> 
> 	joachim
> 
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