Displaying 3 results from an estimated 3 matches for "usch".
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such
2009 Jul 15
1
negative Somers D from Design package
...he analysis detailed here.
If we use the mayo dataset provided with the survivalROC package the estimate for Somer's Dxy is very negative -0.56.
The Nagelkerke R2 is positive though 0.32.
I know there is a difference between explained variation and predictive ability but I am surprised there is usch a difference given that even a non predictive model should have Dxy around 0.
Am I doing something wrong or is there an interpretation that makes sense ?
This is with the mayo data so its reproducible but the result with my data is very similar.
Many thanks in advance
library(survivalROC)
library...
2010 May 22
1
Multiple regressions in alt.binz
...FileInfoW set icon to shell size, stub
It gives an access voilation error in the GUI and fails to load
settings. On quiting it gives another access violation (that looks
like a null pointer dereference)
Any tips for testing for memory leaks?
Any tips beyond the wiki page for regression testing? (usch as things
to include in the bug post)
Gert
2000 Oct 25
9
Return of the Son of MIME type
(quoting from the web archive, I only just subscribed) Monty wrote:
>
> > (a bit testy that this flamewar has started again, and no one has learned a
> > thing from the previous rounds)
>
> OK, that wasn't fair... the old timers know what's up, but I do wish some of
> the folks who bring things up would browse the archive threads or at least not
> jump in