[gradsusr] setting time with intervals

[Jeff Duda]

Sagar,
What does your control file look like?  Can you send it to me please?

Jeff

On Tue, Jan 15, 2013 at 12:23 PM, Sagar P Parajuli <psagar at utexas.edu>wrote:

> Hi Jeff
> I need to plot and print those extracted data. I know how to print it but
> I want to know how to specify the time interval required. The code I am
> using is:
> open ERA.INTERIM.SFC.ctl
> set lat 31.4
> set lon 61.3
> set t 1 last (It will print values pertaining to all t but I want to
> specify an interval of 2).
> set gxout print
> set prnopts %g 1 1
> d mag(no10usfc,no10vsfc)
>
> How can I specify the required time interval for t?
>
> thank you,
>
> -Sagar
>
>
>
> On Tue, Jan 15, 2013 at 10:03 AM, Jeff Duda <jeffduda319 at gmail.com> wrote:
>
>> What do you want to do with the data?  Do you want to make plots in Grads
>> or just extract the data?  If it's the latter, then you don't really even
>> need to use Grads.
>>
>> Jeff
>>
>>
>> On Tue, Jan 15, 2013 at 8:47 AM, Sagar P Parajuli <psagar at utexas.edu>wrote:
>>
>>> Hi Jeff,
>>> I think I didn't clarify my question. I am writing control file for
>>> extracting some wind speed data corresponding to particular time of a day.
>>> What I could do in grads is:
>>>  set t 1 last
>>> But I want to do this skipping certain values eg. I want values
>>> corresponding to t = 1, 3, 5, 7, 9, etc (i.e. with certain interval). So, I
>>> need to skip some data and only extract those datas.
>>> How can I do this?
>>>
>>>
>>> Thank you so much again.
>>>
>>>
>>>
>>> Sagar
>>>
>>>
>>>
>>> On Mon, Jan 14, 2013 at 11:13 PM, Jeff Duda <jeffduda319 at gmail.com>wrote:
>>>
>>>> Time interval is specified in the control file used to open the data
>>>> file.  However, if you used xdfopen or sdfopen, there may be a different
>>>> way to determine the time interval.  In those cases, you should be able to
>>>> find it by dumping the contents.  If your data are in netCDF format, for
>>>> example, you could use ncdump -h (data file) to find out.
>>>>
>>>> Jeff Duda
>>>>
>>>> On Mon, Jan 14, 2013 at 9:47 PM, Sagar P Parajuli <psagar at utexas.edu>wrote:
>>>>
>>>>> Hi all,
>>>>> I need to extract wind speed data at a particular time (12:00 pm only)
>>>>> everyday from the 6 hourly data of one year. So I need to set time as,
>>>>> t = 1, 1460, 2 (start, end, interval). How is the time interval
>>>>> specified in grads?
>>>>>
>>>>> Thank you very much for your help.
>>>>>
>>>>>
>>>>> **
>>>>>
>>>>>
>>>>> * *
>>>>>
>>>>> *Sagar P. Parajuli*
>>>>>
>>>>> **Graduate Research Assistant
>>>>>
>>>>> The University of Texas at Austin
>>>>> Jackson School of Geosciences
>>>>> e-mail: psagar at utexas.edu
>>>>> Contact: +1 512 965 4093
>>>>> _______________________________________________
>>>>> gradsusr mailing list
>>>>> gradsusr at gradsusr.org
>>>>> http://gradsusr.org/mailman/listinfo/gradsusr
>>>>>
>>>>>
>>>>
>>>>
>>>> --
>>>> Jeff Duda
>>>> Graduate research assistant
>>>> University of Oklahoma School of Meteorology
>>>> Center for Analysis and Prediction of Storms
>>>>
>>>> _______________________________________________
>>>> gradsusr mailing list
>>>> gradsusr at gradsusr.org
>>>> http://gradsusr.org/mailman/listinfo/gradsusr
>>>>
>>>>
>>>
>>>
>>> --
>>>
>>> **
>>> Best regards,
>>>
>>>
>>> * *
>>>
>>> *Sagar P. Parajuli*
>>>
>>> **Graduate Research Assistant
>>>
>>> The University of Texas at Austin
>>> Jackson School of Geosciences
>>> e-mail: psagar at utexas.edu
>>> Contact: +1 512 965 4093
>>>
>>> _______________________________________________
>>> gradsusr mailing list
>>> gradsusr at gradsusr.org
>>> http://gradsusr.org/mailman/listinfo/gradsusr
>>>
>>>
>>
>>
>> --
>> Jeff Duda
>> Graduate research assistant
>> University of Oklahoma School of Meteorology
>> Center for Analysis and Prediction of Storms
>>
>> _______________________________________________
>> gradsusr mailing list
>> gradsusr at gradsusr.org
>> http://gradsusr.org/mailman/listinfo/gradsusr
>>
>>
>
>
> --
>
> **
> Best regards,
>
> * *
>
> *Sagar P. Parajuli*
>
> **Graduate Research Assistant
>
> The University of Texas at Austin
> Jackson School of Geosciences
> e-mail: psagar at utexas.edu
> Contact: +1 512 965 4093
>
> _______________________________________________
> gradsusr mailing list
> gradsusr at gradsusr.org
> http://gradsusr.org/mailman/listinfo/gradsusr
>
>


-- 
Jeff Duda
Graduate research assistant
University of Oklahoma School of Meteorology
Center for Analysis and Prediction of Storms
-------------- next part --------------
An HTML attachment was scrubbed...
URL: http://gradsusr.org/pipermail/gradsusr/attachments/20130115/b5f8fa06/attachment-0003.html