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Re: st: Accumulated mean and standard deviation
From
Austin Nichols <[email protected]>
To
[email protected]
Subject
Re: st: Accumulated mean and standard deviation
Date
Sun, 8 Jan 2012 21:02:20 -0500
Pedro Nakashima <[email protected]>:
Faster in one line for each.
by day: gen mean=sum(x)/_n
by day: gen sd=sqrt((sum(x^2)-mean^2*_n)/(_n-1))
On Sun, Jan 8, 2012 at 5:34 PM, Pedro Nakashima
<[email protected]> wrote:
> Thank you Matthew, It worked perfectly!
>
> Best,
> Pedro.
>
>
>
> 2012/1/8 Matthew White <[email protected]>:
>> Hi Pedro,
<snip>
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