[gradsusr] SET A CONSTANT

[AMS EmsiWx Bytča]

Once again thank you both guys, gave up const/maskout after sveral hours 
combining :D , used IF (did not know that it is already in 2.1.x version 
which I have), the correct syntax is:


'define A=if(tempdif,>,25,0,if(tempdif,>=,22,2,6))'


Marian



Dňa 14. 3. 2019 o 20:04 AMS EmsiWx Bytča napísal(a):
>
> Thank you Jeff and Stephen, will try to play with const/maskout first, 
> then I will reinstall my Opengrads and try the if statement.
>
>
> Marian
>
> Dňa 14. 3. 2019 o 15:09 Stephen McMillan napísal(a):
>> Marian,
>>
>> One correction to what I sent...
>>
>> 'define A=if(dt>25,0,if(dt>=22,2,6))'     added the second )
>>
>> Stephen
>>
>> On Thu, Mar 14, 2019 at 10:06 AM Stephen McMillan 
>> <smcmillan at planalytics.com <mailto:smcmillan at planalytics.com>> wrote:
>>
>>     Marian,
>>
>>     If you have the latest version of GrADS or OpenGrADS, you could
>>     do something like this:
>>
>>     'define dt=t850-t500'
>>     'define A=if(dt>25,0,if(dt>=22,2,6)'
>>     'd A'
>>
>>     Stephen McMillan
>>
>>     On Wed, Mar 13, 2019 at 4:14 PM AMS EmsiWx Bytča
>>     <emsiwx at pocasie-bytca.sk <mailto:emsiwx at pocasie-bytca.sk>> wrote:
>>
>>         Dear all,
>>
>>
>>         I am going crazy combining const/maskout to get what I need.
>>
>>         I need to set A according the following:
>>
>>         A= 0 when T850-T500 >25
>>
>>         A= 2 when T850-T500 22-25
>>
>>         A= 6 when T850-T500 <22
>>
>>
>>         Would like to ask any master of const/maskout for help.
>>
>>
>>         Thank you very much in advance.
>>
>>
>>         Marian
>>
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