gnuplot-info

[Gnuplot-info] plotting a line

[markjoe <na...@ma...>]

Hi all,

Use gnuplot already ages, still I don't know all. E.g. I produce year plots
of something, very simple datafile, one column: plot 'data' using 0:1 pt 7
ps 0.5 etc. Suppose I want to make a vertical line at today's date, exactly
from top to bottom axis. I want to keep autoscale for y because that
produces nicer plots. How to draw that line? I don't know the exact maximum
gnuplot will choose for it's maximum. Any ideas?

Thanks, Mark
-- 
View this message in context: http://www.nabble.com/plotting-a-line-tp22917673p22917673.html
Sent from the Gnuplot - User mailing list archive at Nabble.com.

Re: [Gnuplot-info] plotting a line

[Hans-Bernhard B. <HBB...@t-...>]

markjoe wrote:
> ps 0.5 etc. Suppose I want to make a vertical line at today's date, exactly
> from top to bottom axis. 

See "help set arrow" and "help coordinates" to understand what this does:

   set arrow from '2009-04-07', graph 0 to '2009-04-07', graph 1 nohead