Displaying 3 results from an estimated 3 matches for "numobs".
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2009 Dec 22
1
Slow survfit -- is there a faster alternative?
...plot(results.cox)
#(never finished in an hour)
I also tried the cph() function, with similar results.
Is there some easier quick-and-dirty way of producing and plotting
survival curves for large data sets? I've seen some references on this
list that suggest that the underlying algorithm is O(numObs *
numSuccesses) and could be sped up. Has this been done?
Thanks,
_______________________________________________
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2009 Dec 22
0
slow survfit -- is there a better replacement?
...lot(results.cox)
#(never finished in an hour)
I also tried the cph() function, with similar results.
Is there some easier quick-and-dirty way of producing and plotting
survival curves for large data sets? I've seen some references on this
list that suggest that the underlying algorithm is O(numObs *
numSuccesses) and could be sped up. Has this been done?
Thanks,
_______________________________________________
This e-mail may contain information that is confidential, privileged or otherwise protected from disclosure. If you are not an intended recipient of this e-mail, do not duplicate or r...
2009 Oct 21
3
Missing data and LME models and diagnostic plots
Hello
Running R2.9.2 on Windows XP
I am puzzled by the performance of LME in situations where there are missing data. As I understand it, one of the strengths of this sort of model is how well it deals with missing data, yet lme requires nonmissing data.
Thus,
m1.mod1 <- lme(fixed = math_1 ~ I(year-2007.5)*TFC_,
data = long,
random =