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From |
"Svend Juul" <SJ@SOCI.AU.DK> |

To |
<statalist@hsphsun2.harvard.edu> |

Subject |
Re: st: simple question |

Date |
Tue, 5 Feb 2008 13:11:05 +0100 |

Renuka Metcalfe wrote: I want to create a dummy variable redundism which equals dummy = 1 if the establishment has had any dismissals or redundancies in the past 12 months. I would be grateful, if anyone would let me know if the following is the correct way to do it. There is a debate amongst us at whether it in the second line it should be "|" or "&". I would be grateful, if you would confirm if the following is correct or should it be an "&" ge redundism=. replace redundism=1 if zredundab==1|zdismissa==1 replace redundism=0 if zredundab==0|zdismissa==0 ----------------------------------------------------------- By your description it is an OR, i.e. "´". However, the sequence of the two -replace- commands is wrong. Now it gives this result: . input zredundab zdismissa zredundab zdismissa 1. 0 0 2. 0 1 3. 1 0 4. 1 1 5. end . ge redundism=. (4 missing values generated) . replace redundism=1 if zredundab==1|zdismissa==1 (3 real changes made) . replace redundism=0 if zredundab==0|zdismissa==0 (3 real changes made) . list +--------------------------------+ | zredun~b zdismi~a redund~m | |--------------------------------| 1. | 0 0 0 | 2. | 0 1 0 | 3. | 1 0 0 | 4. | 1 1 1 | +--------------------------------+ Try swithching the two -replace- commands. Hope this helps Svend ______________________________________ Svend Juul Institut for Folkesundhed, Afdeling for Epidemiologi (Institute of Public Health, Department of Epidemiology) Vennelyst Boulevard 6 DK-8000 Aarhus C, Denmark Phone: +45 8942 6090 Mobile: +45 2634 7796 Email: sj@soci.au.dk __________________________________________ * * For searches and help try: * http://www.stata.com/support/faqs/res/findit.html * http://www.stata.com/support/statalist/faq * http://www.ats.ucla.edu/stat/stata/

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