Re: timescale as x-axis

[Dmitri A. Sergatskov]

Markus Schlösser wrote:
> Hi,
>
> i'm having problems plotting data against a time-scaled x-axis.
>
> x=[1:1:365];
> y=[1:1:365];
> plot (x,y);
>
> gives me a straight line, as expected. But continuing with
>
> __gnuplot_set__ xdata time
> replot
>
> gives me a wired zig-zagged line across the screen.
> Octave version is 2.1.71
> gnuplot version is 4.0 (same as with 3.7)
> Any hints?

You need to tell gnuplot what is the format of your time data.


__gnuplot_set__ timefmt "%j"

sets it to "day of the year" (1 -- 365).

So all together
x=[1:1:365];
y=[1:1:365];
__gnuplot_set__ xdata time
__gnuplot_set__ timefmt "%j"
plot (x,y)

works for me.

(see "help timfmt" and related in gnuplot)

> cu
>  Markus

Regards,

Dmitri.
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