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Why isn't this working ? axis problem (probably very simple) [message #28100]

Tue, 20 November 2001 07:10

Henk
Messages: 7
Registered: September 2000

Junior Member

Hi,

I want to plot data on a graph with as left y-axis the pressure
(logarithmic) and to the right the altitude (not log).
I'm trying to do this this way :

plot, o_arr,10^(alt_arr),
xrange=[xmin,xmax],yrange=[1013,1],/ylog,color=1,ystyle=9,yt itle='Pressure'

and

axis,yaxis=1, ystyle=1,ytitle = 'Altitude',color=1,yrange=[0,40]

but it gives a warning about an infinite range !
Why is this ? I don't understand. It must have something to do with
the log plot, I guess, but even with a 'ylog=0' as parameter to 'axis'
it won't work.

Could someone help me out ?

Thanks,

Henk

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