Displaying 1 result from an estimated 1 matches for "interactmodel".
2006 Feb 02
1
error message in cox regression cph()
...a$SLOPE,modeldata$PLACEMENT,modeldata$DTL,modeldata$TRACK,modeldata$PRIVATE,modeldata$BUSH,modeldata$ROCK,modeldata$GRASS,modeldata$WATER,modeldata$RUGGED,modeldata$CABIN,data=modeldata)
options(datadist="d")
options(contrasts=c("contr.treatment","contr.treatment"))
interactmodel <- cph(survchoice~(ASP_NW+RUGGED+SLOPE+GRASS:PLACEMENT+PRIVATE+BUSH:ROCK+RUGGED:ROCK+DTL)+strat(ID),data=modeldata,method="breslow",y=TRUE,x=TRUE,surv=TRUE)
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