[gradsusr] statistical parameters

Tue Jan 22 12:30:12 EST 2013

Dear Muhammad,and all others, Thank you for your help. It is useful. Regards, T.

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> Today's Topics:
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>    1. Re: statistical parameters (Muhammad Yunus Ahmad Mazuki)
>    2. Leila Golzari invites you to connect (Leila Golzari via Yahoo!)
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> Message: 1
> Date: Tue, 22 Jan 2013 13:42:26 +0800
> From: Muhammad Yunus Ahmad Mazuki <ukm.yunus at gmail.com>
> Subject: Re: [gradsusr] statistical parameters
> To: GrADS Users Forum <gradsusr at gradsusr.org>
> Message-ID:
> 	<CAKJBA6YiGZgAoHJD0yRiW5mcpTP7h9c5e+FX8eMDakMdbAtHig at mail.gmail.com>
> Content-Type: text/plain; charset=ISO-8859-1
> 
> 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.
> >> >
> >> >
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> >
> >
> > --
> > Jeff Duda
> > Graduate research assistant
> > University of Oklahoma School of Meteorology
> > Center for Analysis and Prediction of Storms
> >
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> Message: 2
> Date: Tue, 22 Jan 2013 13:54:28 +0000
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> Subject: [gradsusr] Leila Golzari invites you to connect
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