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Re: st: Average and count from a given number of previous observations


From   "Scott Merryman" <[email protected]>
To   [email protected]
Subject   Re: st: Average and count from a given number of previous observations
Date   Tue, 11 Dec 2007 07:38:08 -0600

tssmooth ma average28 = rain, w(28)
tssmooth ma average28_2 = rain if rain !=0, w(28)
....


Scott



On Dec 11, 2007 2:01 AM, Patrick Woodburn
<[email protected]> wrote:
> Dear Statalist,
>
> I have weather data for a site in Uganda which I'm hope to compare to
> malaria data.  My rainfall data is a single variable, sorted by date,
> with no missing data, along the following lines:
>
> date           rainfall (ml)
> 01jan2003       12.7
> 02jan2003        3.0
>
> ...
>
> 31jun2007        1.3
>
> I would like to make four new variables for each date.  Two to represent
> the total rainfall across the previous 28 days and across the previous
> 84 days, and two to represent the total number of days on which
> rainfall>0 out of the previous 28 or 84 days.   Could someone suggest
> how best to do this?
>
> Best regards,
>
> Patrick
>
>
>
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