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Hello, i'm tring to use a cox's model for a survival analysis. I have a dataset, this is a part: VOD SESSO fonte_sct donor RT_CGY STATOBMT TEMPO morto 1 0 F mid related 1200 CP 65 1 2 0 M mid 1200 2RC 5281 0 3 0 M mid unrelated 1200 1RC 218...

Hi, i'm trying to apply StepAIC with coxph...but i have the same error: stepAIC(fitBMT) Start: AIC=327.77 Surv(TEMPO,morto==1) ˜ VOD + SESSO + ETA + ........ Error in dropterm.default(fit,scope$drop, scale=scale,trace=max(0, : number of rows in use has changed: remove missing values? anybody know this error?? Thanks. Michele [[alternative HTML version deleted]]

..."dot" files and directories in it TIA Stefano Colombo MCP (email : scolombo@cdmtecno.pr.it ) CDM Tecnoonsulting SPA , v. G Marconi 25 , 43050 Sorbolo Italy Tel. + 39 0521 669511 Fax. + 39 0521 669527 scolombo@cdmtecno.pr.it www.cdmtc.it _____________________________________________ Il sesso senza amore e' un'esperienza vuota, ma fra le esperienze vuote e' una delle migliori Woody Allen _____________________________________________ -------------- next part -------------- A non-text attachment was scrubbed... Name: winmail.dat Type: application/ms-tnef Size: 2100 bytes D...

...> > > > *Define Variable Properties. > > VARIABLE LABELS d1 'Record ID'. > > VARIABLE LABELS d2 'Data di completamento'. > > VARIABLE LABELS d3 'Lingua di partenza'. > > VARIABLE LABELS d4 'Et? :'. > > VARIABLE LABELS d5 'Sesso:'. > > VARIABLE LABELS d6 '3 - Pap? '. > > VARIABLE LABELS d7 'Com'?? composta la tua famiglia? - COMMENT'. > > VARIABLE LABELS d8 '3 - Mamma'. > > VARIABLE LABELS d9 'Com'?? composta la tua famiglia? - COMMENT'. > &gt...

Hi All, I've been having a little trouble with creating a loop that will run a a series of t.tests for inspection, Below is the code i've tried, and some checks i've looked at. I've used the get(paste()) idea as i was told previously that the use of the eval should try and be avoided. I've run a single syntax to check that my systax is correct and works without any problems