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log plot/scaling question




Hi ferret users,

I'm having trouble scaling log plots; hopefully someone can point out my 
error or provide an alternate solution.  I'm trying to scale the plots by 
p0/p, the standard pressure level / the level at each z value.

Here's how I do the plots:

define axis/from/name=test/z/depth log(z[gz=level])
!level goes from 1000mb - 10 mb

vector/over/nolabel epy[gz=test@asn],epz[gz=test@asn]*(1000/z[gz=driving])
!driving is defined on the same grid.

 *** NOTE: Ambiguous coordinates on Z axis: EPZ[GZ=TEST@ASN]*(1000/Z[GZ=DRIVING])
 **ERROR: illegal limits: Z on grid (G005) is not in the range Z=0.8495:3.017
 Axis extremes are Z=5:1038


I've tried various workarounds but can't get the same scaling.  

Any ideas?

On a similar note, is there a plan to include the vlog plot qualifiers to 
other plot types?

Thanks,

Brent

-- 
Brent A. McDaniel

Dept of Earth and Atmospheric Sciences
Georgia Institute of Technology
Atlanta, Ga.  USA




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