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From |
Winfred Avogo <Winfred.Avogo@asu.edu> |

To |
statalist@hsphsun2.harvard.edu |

Subject |
st: RE: RE: RE: RE: Using a SAS like Array procedure in STATA |

Date |
Mon, 27 Jun 2005 15:08:54 -0700 |

Thanks your code helped. But may I ask what the -1 represents, just a gist about your code. Thanks -----Original Message----- From: owner-statalist@hsphsun2.harvard.edu [mailto:owner-statalist@hsphsun2.harvard.edu] On Behalf Of Nick Cox Sent: Monday, June 27, 2005 3:00 PM To: statalist@hsphsun2.harvard.edu Subject: st: RE: RE: RE: Using a SAS like Array procedure in STATA This statement is not a definition, but background comment. My point was that I cannot help if you don't trust your own code, as I don't know exactly what you are trying to calculate. My code offers one simplification of your code. gen distress = max(h3sp5, h3sp6, rr_h3sp7, h3sp8, h3sp9, h3sp10, rr_h3sp11, h3sp12, h3sp13) - 1 may even be right. I can't offer a shorter solution. My guess is that you don't need any Stata emulation of SAS arrays to solve your problem. Nick n.j.cox@durham.ac.uk Winfred Avogo > Thanks for assisting Nick. > > My definition of DISTRESS comprises the nine variables outlined asking > adolescents a series of questions bothering on psychological distress > during the last seven days, e.g. things that bothered them, > inability to > shake off blues, difficulty concentrating and being depressed. > > I have reviewed the link on Array but seem not to understand it as it > applies to what I am trying to do. Could it be simplified? Nick Cox > Not being aware of your definition of DISTRESS I can't offer > any checks here. > gen distress = . > replace distress = max(h3sp5, h3sp6, rr_h3sp7, h3sp8, h3sp9, h3sp10, > rr_h3sp11, h3sp12, h3sp13) - 1 > > looks like one equivalent of your code. > > See also > http://www.stata.com/support/faqs/data/arrays.html > > Nick > n.j.cox@durham.ac.uk > > Winfred Avogo (modulo deprecated HTML, etc.) > > I am working on Add health data in Stata 9 and wish to create a single > measure of DISTRESS using 9 identified variables all on a > scale of 0-3. > I have tried Stata's -generate- and > -replace- command below but did not trust the results I obtained. > > generate distress=. > replace distress=1 if > h3sp5==0|h3sp6==0|rr_h3sp7==0|h3sp8==0|h3sp9==0|h3sp10==0|rr_h > 3sp11==0|h > 3sp12==0|h3sp13==0 > replace distress=2 if > h3sp5==1|h3sp6==1|rr_h3sp7==1|h3sp8==1|h3sp9==1|h3sp10==1|rr_h > 3sp11==1|h > 3sp12==1|h3sp13==1 > replace distress=3 if > h3sp5==2|h3sp6==2|rr_h3sp7==2|h3sp8==2|h3sp9==2|h3sp10==2|rr_h > 3sp11==2|h > 3sp12==2|h3sp13==2 > replace distress=4 if > h3sp5==3|h3sp6==3|rr_h3sp7==3|h3sp8==3|h3sp9==3|h3sp10==3|rr_h > 3sp11==3|h > 3sp12==3|h3sp13==3 > > I would be happy if I could obtain assistance to do this more > efficiently. Will array code in Stata like is done in SAS be > appropriate > here. > * * 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/ * * 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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