Displaying 2 results from an estimated 2 matches for "apgar5".
2004 Oct 16
3
Cox PH Warning Message
Hi,
Can anybody tell me what the message below means and how to overcome it.
Thanks,
Neil
Warning message:
X matrix deemed to be singular; variable 2 in: coxph(Surv(age_at_death,
death) ~ project$pluralgp + project$yrborn + .........
>
1999 Mar 09
2
summary() of lm() problem (PR#135)
...bs.no", "iupc",
"amnioinf", "ves", "anaesth", "delivery.mode", "perineum", "blood.loss",
"transfus", "drugs", "retained.pl", "baby.no", "weight", "apgar1",
"apgar5", "scbu", "ph.ven", "be.ven", "dilat1", "time2", "dilat2",
"time3", "dilat3", "time4", "dilat4", "time5", "dilat5", "time6",
"dilat6", "time7"...