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Re: st: egen rowmin rowmax


From   "Quang Nguyen" <quangn@gmail.com>
To   statalist@hsphsun2.harvard.edu
Subject   Re: st: egen rowmin rowmax
Date   Sat, 4 Nov 2006 15:01:27 -1000

Dear Terri,

Could you try this:

egen rowsum=rowsum(seq*)
egen byte minmath = rowmin(seq*) if rowsum~=0

Please note that minmath is greater than zero iff ALL scores for this
observation is greater than zero.

On 11/4/06, Teresa Dale Nelson <tdale@utdallas.edu> wrote:
Hi Michael,

I believe the condition that rowsum not equal zero would take care of
that. Do you have a thought about this conditionality that I'm missing?

egen byte minmath = rowmin(mathseq*) if rowsum~=0

Thanks,
Terri

Michael Blasnik wrote:


>...
>It looks like the rowmin should always be zero or missing -- at least
if
>your description of the data is accurate.  How could the rowmin be
larger
>than zero if all of the rows contain at least a zero?
>
>Michael Blasnik
>
>----- Original Message -----
>From: "Teresa Dale Nelson" <tdale@utdallas.edu>
>To: <statalist@hsphsun2.harvard.edu>
>Sent: Saturday, November 04, 2006 6:30 PM
>Subject: Re: st: egen rowmin rowmax
>
>
><snip> Instead, the var for egen var=rowmin(varlist) is evaluated to
zero or
>missing.  In fact, some of
> the rows have all zeroes; the rest contain some zeroes and a few
values
>between 1 and 13.
><snip>
>
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