Re: st: eliminate oppositie positive and negative values

[Ron�n Conroy <rconroy@rcsi.ie>]

On 29 M�rta 2007, at 02:41, sara borelli wrote:

> I need to drop the negatives and the positives with
> the same date abs(charge) abs(xm) proc personid. As
> suggested by Michael Blasnik in a previous e-mail I
> runned the following:
doesn't that mean that the charges for a given date should sum to zero?

If that's the case then can't you just sum the charges within each  
person within each date and check if they are zero?

=========
Ron�n Conroy
Royal College of Surgeons in Ireland
rconroy@rcsi.ie
+353 (0) 1 402 2431
+353 (0) 87 799 97 95
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