Displaying 6 results from an estimated 6 matches for "xv1".
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v1
2010 Nov 15
3
How to plot effect of x1 while controlling for x2
...ght be cumbersome if the model was more
complex (e.g., lots of x variables, and/or interactions).
Many thanks,
Mark
#make some random data
x1<-rnorm(100)
x2<-rnorm(100,2,1)
y<-0.75*x1+0.35*x2
#fit a model
model1<-lm(y~x1+x2)
#predict the effect of x1 on y, while controlling for x2
xv1<-seq(min(x1),max(x1),0.1)
yhat_x1<-predict(model1,list(x1=xv1,x2=rep(mean(x2),length(xv1))),type="response")
#plot the predicted values
plot(y~x1,xlim=c(min(x1),max(x1)), ylim=c(min(y),max(y)))
lines(xv1,yhat_x1)
2000 Jun 27
7
File Extension .OGG
.... According to www.wotsit.org,
they are not taken.
With numbers:
V0X - note that is a zero between the V and the X
this would be increased with each new version of the
specs - 1513 hits on AltaVista
M0X - same here - 173 hits
- - -
XS1 - for sound
XV1 - for video
- - -
OV1 - for Ogg Vorbis, Type 1 .. type 2 for video etc.
That's all I can think of right now, but maybe you can brainstorm for
more.
Best regards,
Erik Moeller
--
Scientific Reviewer, Freelancer, Humanist -- Berlin/Germany
Phone: +49-30-45491008 - Web: <http:...
2000 Jun 27
7
File Extension .OGG
.... According to www.wotsit.org,
they are not taken.
With numbers:
V0X - note that is a zero between the V and the X
this would be increased with each new version of the
specs - 1513 hits on AltaVista
M0X - same here - 173 hits
- - -
XS1 - for sound
XV1 - for video
- - -
OV1 - for Ogg Vorbis, Type 1 .. type 2 for video etc.
That's all I can think of right now, but maybe you can brainstorm for
more.
Best regards,
Erik Moeller
--
Scientific Reviewer, Freelancer, Humanist -- Berlin/Germany
Phone: +49-30-45491008 - Web: <http:...
2011 Jun 03
0
How to reconcile Kalman filter result (by package dlm) with linear regression?
...uld approach whatever results that lm() would generates.
However, the results turns out to be very different, even though the signs of the estimates coincide. Linear regression gives the following results
lm1 = lm(Y~0+X)
#########################################################
#> lm1$coef
# XV1 XV2 XV3 XV4
#-0.008293796 0.002183550 -0.004053199 0.003030834
#########################################################
and Kalman filter generate this set of results:
> m
[,1] [,2] [,3] [,4]
[24,] -0.06046868 0.002829377 -0.01569903 0.03599957
I am pretty...
2003 Jul 23
6
Condition indexes and variance inflation factors
Has anyone programmed condition indexes in R?
I know that there is a function for variance inflation factors
available in the car package; however, Belsley (1991) Conditioning
Diagnostics (Wiley) notes that there are several weaknesses of VIFs:
e.g. 1) High VIFs are sufficient but not necessary conditions for
collinearity 2) VIFs don't diagnose the number of collinearities and 3)
No one has
2008 Jun 30
4
Rebuild of kernel 2.6.9-67.0.20.EL failure
Hello list.
I'm trying to rebuild the 2.6.9.67.0.20.EL kernel, but it fails even without
modifications.
How did I try it?
Created a (non-root) build environment (not a mock )
Installed the kernel.scr.rpm and did a
rpmbuild -ba --target=`uname -m` kernel-2.6.spec 2> prep-err.log | tee
prep-out.log
The build failed at the end:
Processing files: kernel-xenU-devel-2.6.9-67.0.20.EL
Checking