[BioC] forward conditional Cox and logistic regression

[Katleen De Preter]

Hi,

I would like to perform Cox proportional hazard survival analysis as 
well as logistic regression analysis in R. At this moment I'm using the 
SPSS program to do these analysis (forward or backward conditional, to 
build a model and to obtain the hazard ratios). However, it is unclear 
to me which package and commands I can use to do exactly the same in R? 
For Cox you can used coxph: however, it is unclear how you can do it 
with the forward conditional method?
Is there a way to do it in R? And what with logistic regression?

Thanks,

Best regards,

Katleen De Preter

-- 
dr. ir. Katleen De Preter
Center for Medical Genetics Ghent (CMGG) 
Ghent University Hospital 
Medical Research Building (MRB), 2nd floor, room 120.038 
De Pintelaan 185, B-9000 Ghent, Belgium 
+32 9 332 5533 (phone) | +32 9 332 6549 (fax)

http://medgen.ugent.be 
Katleen.DePreter at UGent.be