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yes!!
I join group study that study R-programming...
so I really tried..only to fail and made many erros..
I really don't know
how to perform this...
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And:
hey!!!
this is not classroom homework!!
To do main programming,
I find some good training problems in paper...
I tried to do that...but failed
so please help me
Nobody help me...I relly don't know how to perform this...
If you solve this probelm,I will study your work to solve main
1)
dmatrix1-function(n,p,rho,sigma,k){
muvec1=zeros(1,p)
truep-as.matrix(c(3,1.5,0,0,2,0,0,0))
A=eye(p)
for(i in 1:p){
for(j in 1:p){
A[i,j]=rho^(abs(i-j))
X=mvrnorm(n,muvec1,A)
y=X%*%truep+as.matrix(rnorm(n,0,sigma))
Y=X[1:k,]
w=y[1:k]
Z=X[(k+1):n,]
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