Re: [ferret_users] irregular depth axis

["William S. Kessler" <william.s.kessler@xxxxxxxx>]

Try plotting or listing the points. Are they in fact monotonically  
increasing?

When you define a depth axis, the values should be INCREASING  
(downward). Perhaps you need zax[d=1]*(-1).

Billy K

On 7 Apr 10, at 5:32 PM, Iskhaq Iskandar wrote:

> Dear All,
>
> I have a problem in defining an irregular depth axis from a file.
> I attach the depth file in this email.
>
> I use the following commands:
>
> ----------------------
> set mode verify
> file/var=zax/format=(F7.2) test.dat
> def axis/depth/z/npoints=173/unit="days"/name=z1/from_data zax[d=1]
> ---------------------
>
> But I got an error message
>
> **ERROR: improper grid or axis definition: data for DEFINE AXIS/ 
> FROM_VARIABLE is not monotonic
>
> I appreciate any help you might have.
>
> Best regards,
>
> ----------------------------------------------------------------
> Iskhaq Iskandar
> NRC Research Associate
> NOAA/Pacific Marine Environmental Laboratory (PMEL)
> ---------------------------------------------------------------
>
> <test.dat>