search for: surara

Displaying 2 results from an estimated 2 matches for "surara".

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2011 Sep 26
3
survival analysis: interval censored data
...        1            C 2004    2005        0            C 2005    2010        1            E 2007    2009        1            C 2006    2007        0            E 2008    2010        0            C 2008    2010        1            E ... and the census interval is 1 year I have tried  this surara<-survfit(Surv(time1,time2,event,type="interval")~categoria) but it is not working [[alternative HTML version deleted]]
2011 Sep 22
1
(sin asunto)
hello, I want to  know as mortality in different families of epiphytes after selective logging in the forest I want to make a survival analysis with left and right censored data.  My study begins in 2004 but I have many individuals who enter the study in 2007 I have tried this:                     surara<-survfit(Surv(fecha,estado)~categoria) fecha= time estado= dead categoria= control and experimental but it is working just with right censored data [[alternative HTML version deleted]]