st: Re: Accumulastion Order

["Michael Blasnik" <michael.blasnik@verizon.net>]

Your example output does show the cumulative sum of A, but your code doesn't 
even reference a variable A.  It's not clear what p is in your code or why you 
need a double loop or how it relates to the output below it, but Stata can 
produce a cumulative sum using the built-in -sum()- function.

Michael Blasnik

---- Original Message ----- 
From: "Victor M. Zammit" <vmz@vol.net.mt>
To: <statalist@hsphsun2.harvard.edu>
Sent: Friday, March 16, 2007 11:40 AM
Subject: st: Accumulastion Order



> I have variable A with the given observations and I would like to create
> code to get variable Accum.I tried
>
> local i = 1
>
> while `i'<= _N {
>
> local e = 1
>
> while `e'<= _N {
>
> local u = p[`i'] + p[`i'-1]
>
> replace c = `u' in `e'
>
> local e = `e'+1
>
> local i = `i'+1
>
> }
>
> }
>
> but it does not work,
>
> A Accum
>
> 1     1
>
> 3    4
>
> 0    4
<snip> 
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