Displaying 3 results from an estimated 3 matches for "mu5".
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md5
2009 Oct 31
1
Help me improving my code
...gt; fw <- factor(wage)
> Ik <- model.matrix(~fw-1)
> I1 <- Ik[,1]
> I2 <- Ik[,2]
> I3 <- Ik[,3]
> I4 <- Ik[,4]
> I5 <- Ik[,5]
> yelmon <- function(theta,x){
+ mu1 <- theta[1]
+ mu2 <- theta[2]
+ mu3 <- theta[3]
+ mu4 <- theta[4]
+ mu5 <- theta[5]
+ beta <- theta[6]
+ logL <-
sum((Ik*log((exp(mu2-(x*beta))/(1+exp(mu2-(x*beta))))-(exp(mu1-(x*beta))/(1+exp(mu1-(x*beta))))))+(Ik*log((exp(mu3-(x*beta))/(1+exp(mu3-(x*beta))))-(exp(mu2-(x*beta))/(1+exp(mu2-(x*beta))))))+(Ik*log((exp(mu4-(x*beta))/(1+exp(mu4-(x*beta))))-(exp(...
2010 Mar 20
2
EM algorithm in R
Please help me in writing the R code for this problem. I've been solving this
for 4 days. It was hard for me to solve it. It's a simulation problem in R.
The problem is
My true model is a normal mixture which is given as
0.5 N(-0.8,1) + 0.5 N(0.8,1). This model has two components.
I will get a random sample of size 100 from this model. I will do this 300
times.
That means, I will have
2011 Feb 04
0
MSBVAR and hc.forecast
...1,2.1,3.1,100.1)
b = c(1.1,1.1,1.1,100.1,1.1,1.1,1.1,100.1,1.1,1.1,1.,100.1,1.1,1.1,1.1,100.1,1.1,1.1,1.1,100.1,1.1,1.1,1.,100.1)
K <-ts(cbind(a,b),start=c(1.1,1.1), names=c("a","b"))
fit.bvar <- szbvar(K, p = 1, lambda0=0.6, lambda=0.1, lambda3=2,
lambda4=0.25,lambda5=0,mu5=0, mu6=0, prior=0)
y <- matrix(c(rep(0,8),c(1.10,1.10,1.10,100.1,1.10,1.10,1.0,100.10)),ncol=2)
h <- hc.forecast(fit.bvar,y,nsteps=8,burnin=300, gibbs=500,exog=NULL)