Re: [ferret_users] how to skip the invalid data by drawing vector? ferret v6.72 & unix

[Ansley Manke <ansley.b.manke@xxxxxxxx>]

Hi Jimmy,
The syntax you are looking for is

   set var/bad=999 uwnd

for all variables that have invalid values marked by 999.


Ansley


On 11/18/2011 2:16 AM, 金懐東（Jimmy Kin） wrote:

Dear all,

I am using binary file to draw the arrows.

And in my data file there are some invalid value 999. I want to plot blank or not show the arrow in the area where there is 999.

I tried to use the 

| let uwnd2 = if uwnd eq 999 then skip else uwnd

&

| let/bad=-100 uwnd2 = if uwnd eq 999 then (-100) else uwnd

Neither worked.

Thanks for any insight.

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金懐東 （Jimmy Kin)

Yamaguchi Research Laboratory Master Course
Department of Ocean Technology, Policy and Environment
Graduate School of Frontier Sciences

The University of Tokyo
E-mail : jimmyandone@xxxxxxxxx 
TEL     : +81-80-4440-8606

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