# [gradsusr] OLR ANOMALY INDEX STANDARDIZATION

Rekha Bharali rekha.bharali06 at gmail.com
Fri Jan 23 05:39:48 EST 2015

```yes now I understand. Thank you

On 1/23/15, Carlos Batista <krlosbatist at gmail.com> wrote:
> 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
>>>>>>> >
>>>>>>> >
>>>>>>> > Carlos
>>>>>>> >
>>>>>>> >
>>>>>>> > 2015-01-22 3:33 GMT-02:00 Rekha Bharali <rekha.bharali06 at gmail.com
>>>>>>> >:
>>>>>>> >
>>>>>>> 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
>>>>>>> >>
>>>>>>> >>
>>>>>>> >
>>>>>>>
>>>>>>>
>>>>>>> --
>>>>>>>
>>>>>>> .......................................................................
>>>>>>> Rekha Bharali Gogoi
>>>>>>> Scientist 'SC'
>>>>>>> NE-SAC
>>>>>>> Dept. of Space
>>>>>>> Govt. of India
>>>>>>> Meghalaya
>>>>>>>
>>>>>>> _______________________________________________
>>>>>>> gradsusr mailing list
>>>>>>>
>>>>>>>
>>>>>>
>>>>>> _______________________________________________
>>>>>> gradsusr mailing list
>>>>>>
>>>>>>
>>>>> _______________________________________________
>>>>> gradsusr mailing list
>>>>>
>>>>>
>>>>
>>>> _______________________________________________
>>>> gradsusr mailing list
>>>>
>>>>
>>
>>
>> --
>> .......................................................................
>> Rekha Bharali Gogoi
>> NE-SAC
>> Dept. of Space
>> Govt. of India
>> Meghalaya
>>
>> _______________________________________________
>> gradsusr mailing list
>>
>>
>

--
.......................................................................
Rekha Bharali Gogoi
Scientist 'SC'
NE-SAC
Dept. of Space
Govt. of India
Meghalaya
```