[gradsusr] statistical parameters

[Muhammad Yunus Ahmad Mazuki]

You need to write out a script for the things you want to do. You have
to translate any mathematical formula that you want to use into
commands that GrADS can understand. Example
'jun1982=u(time=jun1982)'
'jul1982=u(time=jul1982)'
'aug1982=u(time=aug1982)'
'sumwint1982=jun1982+jul1982+aug1982'
'compwint1982=(jun1982+jul1982+aug1982)/3'
'junave=ave(u,t=6,t=360,12)'
'julave=ave(u,t=7,t=360,12)'
'augave=ave(u,t=8,t=360,12)'
'wintave=(junave+julave+augave)/3'
'anomwint1982=wint1982-wintave'
'stdevwint=sqrt((ave(pow(junave-u,2),t=6,t=360,12)+ave(pow(julave-u,2),t=7,t=360,12)+ave(pow(junaug-u,2),t=8,t=360,12))/3))'

This is for plotting anomalies and standardised anomalies. Depending
on what you need, you have to write what you need to get what you
need. Furthermore, if you need to take a partucular time series, its
going to be a long script.

On Tue, Jan 22, 2013 at 12:55 AM, Jeff Duda <jeffduda319 at gmail.com> wrote:
> Yes, it is possible.  However, your question is very general, so I can't
> really offer any additional help regarding the actual computations without
> knowledge of your data.
>
> Jeff Duda
>
>
> On Mon, Jan 21, 2013 at 4:13 AM, T. haghroosta <haghroosta at hotmail.com>
> wrote:
>>
>> Dear All,
>>
>> Any reply or suggestion? Is it possible calculating statistical
>> parameters
>> with GRADS or not?
>>
>> Regards
>>
>> T.
>>
>> >
>> >
>> >
>> > Dear All,
>> >
>> > Could you please tell me how I can calculate some statistical
>> > parameters
>> > in GRADS, Such as Root Mean Square Error (RMSE), Coefficient of
>> > Correlation
>> > (CC), Coefficient of Efficiency (CE) and some others that are important
>> > to
>> > evaluate?
>> >
>> > Regards,
>> >
>> > T.
>> >
>> >
>> > -------------- next part --------------
>> > An HTML attachment was scrubbed...
>> > URL:
>> >
>> > http://gradsusr.org/pipermail/gradsusr/attachments/20130120/0d56567e/attachment-0001.html
>> >
>> > ------------------------------
>> >
>> > _______________________________________________
>> > gradsusr mailing list
>> > gradsusr at gradsusr.org
>> > http://gradsusr.org/mailman/listinfo/gradsusr
>> >
>> &gt! ;
>> > End of gradsusr Digest, Vol 35, Issue 40
>> > ****************************************
>>
>>
>> _______________________________________________
>> 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
>