Hi
Could anybody give me a bit of advice on some code I'm having trouble with?
I've been trying to calculate the loglikelihood of a function iterated over
a data of time values and I seem to be experiencing difficulty when I use
the function expm(). Here's an example of what I am trying to do
On 8/3/07 22:12, Gad Abraham [EMAIL PROTECTED] wrote:
Laura Hill wrote:
On 7/3/07 00:15, Gad Abraham [EMAIL PROTECTED] wrote:
On 6 Mar 2007, at 08:54, Laura Hill wrote:
Hi,
My name is Laura. I'm a PhD student at Queen's University Belfast
and have
just started learning R. I
On 8/3/07 22:12, Gad Abraham [EMAIL PROTECTED] wrote:
Laura Hill wrote:
On 7/3/07 00:15, Gad Abraham [EMAIL PROTECTED] wrote:
On 6 Mar 2007, at 08:54, Laura Hill wrote:
Hi,
My name is Laura. I'm a PhD student at Queen's University Belfast
and have
just started learning R. I
(Q * y[i]) %*% q)
?
Don't have a clue about the correctness of the contents of cox2.lik...
Andy
On 6 Mar 2007, at 08:54, Laura Hill wrote:
Hi,
My name is Laura. I'm a PhD student at Queen's University Belfast
and have
just started learning R. I was wondering if somebody could
Hi,
My name is Laura. I'm a PhD student at Queen's University Belfast and have
just started learning R. I was wondering if somebody could help me to see
where I am going wrong in my code for estimating the parameters [mu1, mu2,
lambda1] of a 2-phase Coxian Distribution.
Hi,
My name is Laura. I'm a PhD student at Queen's University Belfast and have
just started learning R. I was wondering if somebody could help me to see
where I am going wrong in my code for estimating the parameters [mu1, mu2,
lambda1] of a 2-phase Coxian Distribution.
cox2.lik-function(theta,
Can the expm function be used to calculate the exponential of a matrix where
the matrix is multiplied by a vector in a data frame?
For example
for (i in 1:length(y)){
expmN-expm(Q*y[i])
Q-Matrix(c(1, 2, 3, 4), 2, 2)
return(expmN)
}
Sorry I am new to R and I have been
