[gradsusr] OLR ANOMALY INDEX STANDARDIZATION

[Rekha Bharali]

Thank you. I will follow your suggestion
On Jan 22, 2015 6:24 PM, "Carlos Batista" <krlosbatist at gmail.com> wrote:

> So make the media your data minus the mean divided by the standard
> deviation!
>
> Cheers!
> Carlos Batista
>
> 2015-01-22 10:20 GMT-02:00 Rekha Bharali <rekha.bharali06 at gmail.com>:
>
>> Yes I want to calculate the standardize value given in the CPC data file
>> from the original data from the same file attached with this file
>> On Jan 22, 2015 5:04 PM, "Carlos Batista" <krlosbatist at gmail.com> wrote:
>>
>>> I see your date...
>>>
>>> The normalized is make
>>>
>>> your data value (X) minus the average this data (x), divided by the
>>> standard deviation of a time series (y)
>>>
>>> n=X-x/y
>>>
>>> you'll do  average this your data by OLR?
>>>
>>> 2015-01-22 9:20 GMT-02:00 Rekha Bharali <rekha.bharali06 at gmail.com>:
>>>
>>>> Thank you for your prompt reply.
>>>>
>>>> Actually what I am doing is :
>>>>
>>>> (1) Calculate mean for the base period 1981-2010
>>>> (2) Calculate standard deviation  for the above period
>>>> (3) Standardize the OLR anomaly by the following formula:
>>>>
>>>>                      (present OLR-base period mean) / standard deviation
>>>>
>>>> But I am not sure whether I am doing it correct or not. Because my
>>>> result does not match with the standard value attached with this mail.
>>>>
>>>> I think the standardization method is different then what I am doing.
>>>>
>>>> I will follow your suggestion and let you know.
>>>> Thank you
>>>>
>>>> On 1/22/15, Carlos Batista <krlosbatist at gmail.com> wrote:
>>>> > You want to split the average standard deviation?
>>>> >
>>>> > ******************************************
>>>> > * Remove by variable tend
>>>> > ******************************************
>>>> > *my variable number 1****
>>>> >
>>>> > ltrend vaz.2 vazm slope12 rmse12
>>>> > define dvaz12=vaz.2-vazm
>>>> >
>>>> > ***** If you want to make average moving*****
>>>> > rmean dvaz12 6 dvaz6mm
>>>> > *************************************************
>>>> > *my variable 2****
>>>> > ltrend mediaan mediaand s e
>>>> > define mediaanm=mediaan-mediaand
>>>> >
>>>> > ******************************************
>>>> > * Here I normalizeted my variables  - Divided by the standard
>>>> deviation
>>>> > ******************************************
>>>> >
>>>> > dp1=sqrt(ave(pow(dvaz6mm,2),t=1,t=33))
>>>> > set ccolor 1
>>>> > set cthick 6
>>>> > set cmark 0
>>>> > d dvaz6mm/dp1
>>>> >
>>>> > dp2=sqrt(ave(pow(mediaanm,2),t=1,t=33))
>>>> > set gxout bar
>>>> > set bargap 40
>>>> > set barbase 0
>>>> > set baropts outline
>>>> > set ccolor 4
>>>> > d mediaanm/dp2
>>>> >
>>>> > **************************************
>>>> >
>>>> > The rmean you find in
>>>> >
>>>> > *...http://www.atmos.umd.edu/~bguan/grads/GrADS_Scripts.html
>>>> > <http://www.atmos.umd.edu/~bguan/grads/GrADS_Scripts.html>*
>>>> >
>>>> > Carlos
>>>> >
>>>> >
>>>> > 2015-01-22 3:33 GMT-02:00 Rekha Bharali <rekha.bharali06 at gmail.com>:
>>>> >
>>>> >> Can anybody please help me with a grads script to calculate
>>>> Standardize
>>>> >> OLR anomaly index
>>>> >> using Grads. It will be agreat help.
>>>> >>
>>>> >> --
>>>> >>
>>>> .......................................................................
>>>> >> Rekha Bharali Gogoi
>>>> >> NE-SAC
>>>> >> Dept. of Space
>>>> >> Govt. of India
>>>> >> Meghalaya
>>>> >>
>>>> >> _______________________________________________
>>>> >> gradsusr mailing list
>>>> >> gradsusr at gradsusr.org
>>>> >> http://gradsusr.org/mailman/listinfo/gradsusr
>>>> >>
>>>> >>
>>>> >
>>>>
>>>>
>>>> --
>>>> .......................................................................
>>>> Rekha Bharali Gogoi
>>>> Scientist 'SC'
>>>> NE-SAC
>>>> Dept. of Space
>>>> Govt. of India
>>>> Meghalaya
>>>>
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>>>> gradsusr at gradsusr.org
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>>>>
>>>>
>>>
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>
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