[R] hi! l have a question please help me

2010-07-29 Thread leepama
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,] z=y

Re: [R] hi! l have a question please help me

2010-07-30 Thread leepama
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... -- View this message in context: http://r.789695.n4.nabble.com/hi-l-have-a-question-please-help-me-tp2307569p2308091.html Sent from the R hel

Re: [R] hi! l have a question please help me

2010-07-30 Thread leepama
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 pro

[R] hi!! please help me

2010-07-30 Thread leepama
If xj=Z1+0.1e j=1,2,315 Z1~N(0,1) e~iid N(0,1) Z1 and e independent... In this model xj has pairwise correlation 0.99 Is it true?? If true..how to generate xj? please give me answer! -- View this message in context: http://r.789695.n4.nabble.com/hi-please-help-me-tp2308631p2308631.html

[R] question!!

2010-08-01 Thread leepama
hi!! imade many codes during these days.. I study Statistics please one more question!! ex1<-function(n,p,rho){ muvec1=zeros(1,p) 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)}} return(X) } this code generates design matrix in linare regr

[R] hi!!! guestion!!

2010-08-03 Thread leepama
I made some matlab codes... Is there any method to perform matlab codes in R program?? -- View this message in context: http://r.789695.n4.nabble.com/hi-guestion-tp2311219p2311219.html Sent from the R help mailing list archive at Nabble.com. __ R-hel

[R] question!!!!

2010-08-04 Thread leepama
I made some design matrix X(in linear regression model) I there any method to normalize X? -- View this message in context: http://r.789695.n4.nabble.com/question-tp2312938p2312938.html Sent from the R help mailing list archive at Nabble.com. __ R-he

[R] hi!! please help me!

2010-08-05 Thread leepama
I made some anonymous function which performs some process in matlab code.. But I want to perform it in R program... Is there any method??? -- View this message in context: http://r.789695.n4.nabble.com/hi-please-help-me-tp2315919p2315919.html Sent from the R help mailing list archive at Nabble.

[R] Hi!

2010-08-11 Thread leepama
I found some amazing package called "lqa" one question!!! Can I use this package in linaer model(not GLM)? -- View this message in context: http://r.789695.n4.nabble.com/Hi-tp2321809p2321809.html Sent from the R help mailing list archive at Nabble.com.