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From |
"Maria Montez" <montez@bu.edu> |

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

Subject |
RE: st: creating an array with hospitalization days |

Date |
Tue, 8 Nov 2005 15:37:12 -0500 |

Here is the error message: . forvalues i=begin(1)end { 2. replace day`i'=1 3. } invalid syntax r(198); I actually tabulated both begin and end and begin goes from 1-364 and end goes from 1-365. I think I cannot use variables in defining where the loop should start and end. I did a test by writing forvalues i=begin(1)end { replace day5=1 } and I get the same error. Thanks, Maria -----Original Message----- From: owner-statalist@hsphsun2.harvard.edu [mailto:owner-statalist@hsphsun2.harvard.edu]On Behalf Of Eric G. Wruck Sent: Tuesday, November 08, 2005 3:21 PM To: statalist@hsphsun2.harvard.edu Subject: Re: st: creating an array with hospitalization days What was the syntax error? You may have gone past the 365th element of your array if you have a discharge day sometime past 1-October-2001, or thereabouts. Eric >Hi! I'm still on v8. > >I'm looking at one year of data for which one record corresponds to one >hospitalization. I created variables day1-day365 to represent all the days >in that year. Now, I would like those variables to be equal to one during an >hospitalization. I have the admission day (admitday) and the discharge day >(disday) and using these, I created two variables begin and end that tell me >when did that hospitalization started and ended. Then I though that I could >loop from begin to end and change the day array from 0 to 1. However I'm >getting a syntax error and I think it comes from the begin and end variables >in the forvalues loop. Can anyone help me? > >sample code: > >forvalues i=1(1)365 { > gen day`i'=0 >} > >gen begin=admitday-mdy(10,1,2000)+1 >replace begin=1 if begin<=0 > >gen end=disday-mdy(10,1,2000)+1 > >forvalues i=begin(1)end { > replace day`i'=1 >} > >sample data: > > +--------------------------------------------------------------+ > | study_id admitday disday begin end day1 day2 | > |--------------------------------------------------------------| > 1. | 19 03jan2001 24jan2001 95 116 0 0 | > 2. | 362 24may2001 29may2001 236 241 0 0 | > 3. | 396 01jun2001 07jun2001 244 250 0 0 | > 4. | 436 21mar2001 22mar2001 172 173 0 0 | > 5. | 438 17jan2001 25jan2001 109 117 0 0 | > |--------------------------------------------------------------| > 6. | 517 06mar2001 21mar2001 157 172 0 0 | > 7. | 517 11sep2001 17sep2001 346 352 0 0 | > 8. | 590 16sep2001 17sep2001 351 352 0 0 | > 9. | 879 20dec2000 22dec2000 81 83 0 0 | > +--------------------------------------------------------------+ -- =================================================== Eric G. Wruck Econalytics 2535 Sherwood Road Columbus, OH 43209 ph: 614.231.5034 cell: 614.330.8846 eFax: 614.573.6639 eMail: ewruck@econalytics.com website: http://www.econalytics.com ==================================================== * * 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/

**References**:**Re: st: creating an array with hospitalization days***From:*"Eric G. Wruck" <ewruck@econalytics.com>

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