It's not much of an improvement, but if a, b, c, and d all are all dummy
(0/1) variables:
replace x = 0 if a + b + c + d == 4
David
--
David Radwin
Senior Research Associate
MPR Associates, Inc.
2150 Shattuck Ave., Suite 800
Berkeley, CA 94704
Phone: 510-849-4942
Fax: 510-849-0794
www.mprinc.com
> >> On Tue, Dec 11, 2012 at 6:00 PM, Thomas Lux <tholux2000@yahoo.de>
> wrote:
> >>> Thank you very much, Nick!
> >>>
> >>> The mentioned statement makes indeed no sense.
> >>>
> >>> The statement should be
> >>>
> >>>
> >>> replace x = 0 if a==1 & b==1 & c==1 & d==1 & d==1
> >>>
> >>> Is there a way to do this in a shorter way?
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