[R] package relimp
David Firth
david.firth at nuffield.oxford.ac.uk
Wed Jul 10 11:37:48 CEST 2002
Christian, no, that's not correct.
The "sd ratio" is a ratio, so if the numerator exceeds the denominator the
ratio exceeds one; and vice-versa.
The "log(sd.ratio)" is the natural logarithm of that ratio. It is
positive when the numerator exceeds the denominator.
In the output you sent, it is not possible to be conclusive: the estimated
ratio is too close to 1.
I hope that's clearer. The documentation for relimp does need improving,
but the improvements I have in hand would not have answered this for you.
Did you look at the article by Silber, Rosenbaum and Ross (cited in the
documentation)?
Regards,
David
On Tuesday, July 9, 2002, at 16:02 , Christian Schulz wrote:
> Hi,
> i'm newbie for this, but it's very interesting, but how i have to
> interpret the results
> if i get i.e. this results ?
>
>
> Is it correct -
> if the "Ratio of effect sd" is positiv than the Numerator effects are
> bigger , and the negative case vice-versa ?
>
>
> Ratio of effect standard deviations: 0.954
> Log(sd ratio): -0.047 (se 0.828)
>
> Approximate 95% confidence interval for log(sd ratio): (-1.669,1.575)
> Approximate 95% confidence interval for sd ratio: (0.188,4.833)
>
>
> Thanks for advance & perhaps a link/pdf but i find nothing related with
> google.
> regards,Christian
>
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