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Re: st: Accumulated mean and standard deviation


From   Pedro Nakashima <nakashimapedrolist@gmail.com>
To   statalist@hsphsun2.harvard.edu
Subject   Re: st: Accumulated mean and standard deviation
Date   Sun, 8 Jan 2012 18:23:09 -0200

Hi guys

Unfortunately, I forgot one important point for my analysis.

Given that I have the same kind of data for several days and I need to
calculate these statistics for each of these days, I have to do
something like "bysort days: 'all those commands' "

Do you know how can I do that?

One more time, best regards
Pedro

2012/1/8 Pedro Nakashima <nakashimapedrolist@gmail.com>:
> Perfect!
>
> Thank you Matthew and Sunil!
>
> Best,
> Pedro.
>
> 2012/1/8 Sunil Kumar <stuff.sunil@googlemail.com>:
>> Does this achieve what you want?
>>
>> gen mean=.
>> gen sd=.
>>
>> local k=_N
>> forv i=1/`k' {
>> qui su x in  1/`i'
>> qui replace mean=r(mean) in `i'
>> qui replace sd=r(sd) in `i'
>> }
>>
>> Best,
>> Sunil
>> *
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