[gradsusr] OLR ANOMALY INDEX STANDARDIZATION

[Rekha Bharali]

 "So make the media your data minus the mean divided by the standard
deviation!"

Sir, I am bit confused. By Media do you mean median of the data?



On Thu, Jan 22, 2015 at 7:36 PM, Rekha Bharali <rekha.bharali06 at gmail.com>
wrote:

> 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
>>>>>
>>>>> _______________________________________________
>>>>> gradsusr mailing list
>>>>> gradsusr at gradsusr.org
>>>>> http://gradsusr.org/mailman/listinfo/gradsusr
>>>>>
>>>>>
>>>>
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>>>>
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>>
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-- 
.......................................................................
Rekha Bharali Gogoi
NE-SAC
Dept. of Space
Govt. of India
Meghalaya
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