bernat writes:
> Looks this example:
>
> Plot, [10], [0.3], yr=[0.22,0.55], xr=[0,20], ystyle=1, /ylog,
> psym=2, yticks=1, ytickv=loglevels([0.22,0.55])
>
> the result is:
>
> % PLOT: Data coordinate system not established.
This happens when there is a mismatch between the number
of values returned by LOGLEVELS and the number you use
for YTICKS. This is why I think you should look at the
*REVISED* web page article and use the code you find there:
ticks = LOGLEVELS([0.22,0.55])
nticks = N_Elements(ticks)
Plot, data, /YLOG, YRANGE([0.22,0.55])YTICKS=nticks-1, $
YTICKV=Reverse(ticks)
Cheers,
David
--
David Fanning, Ph.D.
Fanning Software Consulting, Inc.
Coyote's Guide to IDL Programming: http://www.dfanning.com/
Se****e ma de ni thui. ("Perhaps thou speakest truth.")
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