Re: A trick in ncl.

Use the "where" function

http://www.ncl.ucar.edu/Document/Functions/Built-in/where.shtm

    prc = where(abs(prc).lt.0.1, 0.0, prc)

Good luck

Wang, Yi wrote:
> Hi Folks:
>
> I have an observation with an uncertain range of -/+ 0.1. Any values within
> the range is considered as 0.0.
>
> I tried with:
>
> mask(prc,abs(prc).lt.0.1,False) ;;;; This set up the 0.0 value to missing
> value.
>
> And:
>
> Prc = prc>0.1 ;;;;; This set up the less than 0.1 value to 0.1.
>
> Both cannot give the right answer to my demand. PRC is the observation.
>
> Is there anyway to realize this without looping over the data?
>
> Thanks in advance,
>
> Yi Wang, PhD
> Pacific Northwest National Lab
>
>
>
> _______________________________________________
> ncl-talk mailing list
> ncl-talk_at_ucar.edu
> http://mailman.ucar.edu/mailman/listinfo/ncl-talk
>

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Dennis J. Shea                  tel: 303-497-1361    |
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Climate Analysis Section                             |
Climate & Global Dynamics Div.                       |
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