[gradsusr] OLR ANOMALY INDEX STANDARDIZATION

Carlos Batista krlosbatist at gmail.com
Fri Jan 23 05:10:56 EST 2015


Oh! Rekha!!!

I wrote wrong, please, sorry!!!
Here, in Brazil, media is average (...)

The phase correct is...

"So make the average (not media ... media is in portuguese) your data minus
the mean divided by the standard deviation!"

Do you understand?

Cheers!
Carlos

2015-01-23 2:29 GMT-02:00 Rekha Bharali <rekha.bharali06 at gmail.com>:

>  "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
>>>>>>
>>>>>>
>>>>>
>>>>> _______________________________________________
>>>>> gradsusr mailing list
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>>>>>
>>>>>
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>>>
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>
>
> --
> .......................................................................
> 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
>
>
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