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yanyuan
2009 May 12
1
questions on rpart (tree changes when rearrange the order of covariates?!)
...0.6)
printcp(fit3)
table(predict(fit3,type="class"),pmydata$diabetes)
##after exchage the order of BODY mass and PLASMA glucose
neg pos
neg 436 64
pos 64 204
#Klimt(fit3,pmydata)
Thanks,
--------------------------------------------------------------------------------------
Yuanyuan Huang
[[alternative HTML version deleted]]
2012 Mar 20
2
cv.glmnet
Hi, all:
Does anybody know how to avoid the intercept term in cv.glmnet coefficient?
When I say "avoid", it does not mean using coef()[-1] to omit the printout
of intercept, it means no intercept at all when doing the analysis. Thanks.
[[alternative HTML version deleted]]
2009 May 22
1
bug in rpart?
...xt(fit3,use.n=T,cex=0.6)
printcp(fit3)
table(predict(fit3,type="class"),pmydata$diabetes)
##after exchage the order of BODY mass and PLASMA glucose
neg pos
neg 436 64
pos 64 204
Best,
--
--------------------------------------------------------------------------------------
Yuanyuan Huang
Email: sunnyuan.h at gmail.com
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2012 Jan 23
1
Jags problem
Hi, all:
I met "Non-conforming parameters for function %*%" problem, when I run the
Jags model in R.
My model is like this:
model{
for(i in 1:n){
for(j in 1:t[i]){
et[i,j]<-yt[i,j]-beta0+betax*xt[i,j]+betat*t[i,j]
}
for(a in 1:t[i]){
for(b in 1:t[i]){
sigma[i,a,b]<-pow(rho0,abs(t[a]-t[b]))
}
}
phi[i]<-
2012 Jan 24
1
Cannot evaluate subset expression for sigmainverse
Hi, anybody can help me with this? can JAGS solve the inverse of a matrix
in the 3-way array? Thank you!
for(i in 1:n){
for(a in 1:t[i]){
for(b in 1:t[i]){
sigma[i,a,b]<-pow(rho,t[a]-t[b])
}
}
sigmainverse[i,,]<-inverse(sigma[i,,]) # this is where jags got error
}
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2014 Jun 05
0
ICAC14 Call For Participation
...practitioners from disparate disciplines, application
domains, and perspectives, enabling them to discover and share underlying
commonalities in their approaches to making resources, applications, and
systems more autonomic.
The technical sessions program includes:
* Daily Keynote Addresses from Yuanyuan Zhou, University of California, San
Diego; Lucy Cherkasova, HP Labs; and Ion Stoica, University of California,
Berkeley
* Paper presentations on model-driven management and self-adaptation, cloud
resource management, network and system management, scheduling and pricing,
resource and workload manag...
2014 Jun 05
0
ICAC14 Call For Participation
...practitioners from disparate disciplines, application
domains, and perspectives, enabling them to discover and share underlying
commonalities in their approaches to making resources, applications, and
systems more autonomic.
The technical sessions program includes:
* Daily Keynote Addresses from Yuanyuan Zhou, University of California, San
Diego; Lucy Cherkasova, HP Labs; and Ion Stoica, University of California,
Berkeley
* Paper presentations on model-driven management and self-adaptation, cloud
resource management, network and system management, scheduling and pricing,
resource and workload manag...
2012 May 05
0
penalized quantile regression (rq.fit.lasso)
Dear all:
I have a question about how to get the optimal estimate of coefficients
using the penalized quantile regression (LASSO penalty in quantile
regression defined in Koenker 2005).
In R, I found both
rq(y ~ x, method="lasso",lambda = 30) and
rq.fit.lasso(x, y, tau = 0.5, lambda = 1, beta = .9995, eps = 1e-06)
can give the estimates. But, I didn't find a way using either of